MindTouch Dream XAtom2026-06-17T09:33:34ZMindTouch Corehttp://www.softether.org/@api/deki/site/opensearch?q=log+format&format=atom&offset=0&limit=100+((content:log content:format) ((title:log title:format)^10.0) ((path.title:log path.title:format)^4.0) ((description:log description:format)^3.0) ((tag:log tag:format)^2.0) (comments:log comments:format)) +(type:wiki type:document type:image type:comment type:binary) +namespace:main -namespace:template_talk -namespace:help -namespace:help_talk1000001002024-01-18T15:50:47Z2024-01-18T15:50:47Zhttp://www.softether.org/4-docs/1-manual/3/3.ASoftEther VPN Server automatically writes logs for operational status and packets flowing over Virtual Hubs as a log file, thereby incorporating a function which enables a simple and sure way to confirm proper operation as well as trace problems and discover any unauthorized access & policy breaches at a later date. This section explains the logging service integrated into SoftEther VPN Server.   3.10.1 Log Save Format & Save Cycle Types of Logs Saved The VPN Server automatically writes the Server Log as the log for the entire VPN Server. Also, in addition to each of the Virtual Hubs writing a security log recording important operating conditions relating to the hub's administration and VPN connection records, they also write packet logs for packets types pre-designated by the Virtual Hub Administrator. All log files have their own entry and are written one to a line in a text file. When multibyte characters such as hiragana & Chinese characters are used in the log file, the encoding m12516421254-docs/1-manual/3/3.A2492013-03-04T07:26:13Z2013-03-04T07:26:13Zhttp://www.softether.org/4-docs/1-manual/3The SoftEther VPN Server is VPN server software equipped with high performance, functionality, security, scalability and portability. The SoftEther VPN Server is the most important software in the SoftEther VPN system, and as its name implies, acts as a VPN server which supports access from remote VPN Clients, VPN Bridges and so on across a network. This server must be installed whenever the SoftEther VPN software is used in order to realize a VPN in any format. This is because the SoftEther VPN Server is the only one capable of supporting access from the VPN Client and VPN Bridge. This chapter describes each of the functions of the SoftEther VPN Server as well as how they are used. 3.1 Operating System Requirements 3.2 Operating Modes 3.3 VPN Server Administration 3.4 Virtual Hub Functions 3.5 Virtual Hub Security Features 3.6 Local Bridges 3.7 Virtual NAT & Virtual DHCP Servers 3.8 Virtual Layer 3 Switches 3.9 Clustering 3.10 Logging Service 0.0620536529441674-docs/1-manual/31712025-09-22T07:00:46Z2025-09-22T07:00:46Zhttp://www.softether.org/4-docs/1-manual/3/3.3Operations to administer the SoftEther VPN Server are divided into two main types. One is for the overall administration of the VPN Server while the other is for the administration of specific Virtual Hubs within the VPN Server. Here we will first explain the know-how and handling methods required to administer the entire VPN Server. The following explanation contains a description of specific methods for handling the SoftEther VPN Server Manager and the corresponding VPN command line management utility (vpncmd) command names. Please refer to 6. Command Line Management Utility Manual for details on how to use each of the vpncmd commands.   3.3.1 Administration without the need for System Stop The entire program structure of the SoftEther VPN Server has been carefully designed, so that the VPN Server process itself does not have to be rebooted regardless of the type of settings changes being made. The only exceptions whereby the VPN Server process must be rebooted are the following four cases. 0.05857872108796103954-docs/1-manual/3/3.31762013-03-04T08:21:24Z2013-03-04T08:21:24Zhttp://www.softether.org/4-docs/1-manual/6/6.4This section describes the commands for configuring and managing a Virtual Hub selected with the Hub command from among the commands that can be called when using vpncmd in VPN Server or VPN Bridge management mode. For information about the commands for configuring and managing the entire VPN Server, please refer to 6.3 VPN Server / VPN Bridge Management Command Reference (For Entire Server). 6.4.1 "Online": Switch Virtual Hub to Online Command Name Online Purpose Switch Virtual Hub to Online Description Use this when the Virtual Hub currently being managed is offline to switch it to online. A Virtual Hub with an offline status cannot receive VPN connections from clients. By switching the Virtual Hub to online, that Virtual Hub becomes able to receive connections from users and provide services. This command cannot be run on VPN Bridge. You cannot execute this command for Virtual Hubs of VPN Servers operating as a cluster. Command-line Online 0.05689425298985201934-docs/1-manual/6/6.43552013-06-04T12:59:32Z2013-06-04T12:59:32Zhttp://www.softether.org/4-docs/1-manual/6/6.3This section describes the commands for configuring and managing the entire VPN Server from among the commands that can be called when using vpncmd in VPN Server or VPN Bridge management mode. For information about the commands for configuring and managing a Virtual Hub selected with the Hub command, please refer to 6.4 VPN Server / VPN Bridge Management Command Reference (For Virtual Hub). 6.3.1 "About": Display the version information Command Name About Purpose Display the version information Description This displays the version information of this command line management utility. Included in the version information are the vpncmd version number, build number and build information. Command-line About Arguments for "About": No arguments are required.   6.3.2 "ServerInfoGet": Get server information Command Name ServerInfoGet Purpose Get server information Description 0.05660794211664144584-docs/1-manual/6/6.33542013-03-04T08:20:43Z2013-03-04T08:20:43Zhttp://www.softether.org/4-docs/1-manual/6/6.2This section describes the general usage of the vpncmd commands and how to display help for the command input rules.   6.2.1 Command Input Rules Input Prompt When vpncmd is ready to receive command input, the command prompt cursor (">") is displayed, and you can use the keyboard to enter a new command. There are four prompt statuses, and these can be used to determine in which mode vpncmd is currently operating. VPN Server Management Mode This mode manages the entire VPN Server directly after establishing a management connection to VPN Server. The prompt in this mode is as follows. VPN server> In this mode, you can only call the commands for managing the entire destination VPN Server, such as the ServerStatusGet and HubCreate commands. Approximately 60 commands are available in this mode. By using the Hub command to select the Virtual Hub you want to manage in this mode, you can switch to the Virtual Hub management mode. VPN Ser0.055300654869350294-docs/1-manual/6/6.22712024-01-27T10:25:06Z2024-01-27T10:25:06Zhttp://www.softether.org/4-docs/1-manual/B/11.1This section will describe common problems encountered when using SoftEther VPN and how to solve them. Please look over the information presented here and attempt to fix any problems you can before contacting technical support.   11.1.1 Programs Suddenly Terminate during Normal Operation. In some cases, a SoftEther VPN program's process will suddenly terminate without warning. If this occurs, confirm the following: Check to see if the program's executable file (an EXE file under Windows) is corrupted or if it has been overwritten. If the contents of executable files such as vpnserver, vpnclient, or vpnbridge have been modified, they may not function properly. If you think a program's executable file may be corrupted, re-install SoftEther VPN. Check to see if the files necessary to execute the program (such as hamcore.se2, etc.) are corrupted. If you think a file may be corrupted, re-install SoftEther VPN. Check to see if there is a problem with your computer's physical memory. If yo0.054118675188949864-docs/1-manual/B/11.13452024-02-16T11:50:18Z2024-02-16T11:50:18Zhttp://www.softether.org/4-docs/1-manual/7/7.3This section describes how to install SoftEther VPN Server to a Linux operating system. This assumes that in the Linux operating system, no extra application software is installed after performing a clean install of the system. This also assumes that, as a basic rule, the firewall and similar functions included in the Linux distribution are not being used, and that the function for blocking communication to TCP/IP ports from the outside (firewall function) is disabled.   7.3.1 Recommended System Recommended Operating System Configuration The Linux version of SoftEther VPN Server can operate in most cases on platforms with Linux kernel 2.4 or later; however, SoftEther VPN Project recommends only those environments using the following Linux distributions. (As of the time of writing this manual, this is the recommended environment; however, this may change to higher specifications in the future.) Ubuntu For more information about the system requirements, please refer to Specificatio0.054075812778428144-docs/1-manual/7/7.32762024-02-16T11:49:59Z2024-02-16T11:49:59Zhttp://www.softether.org/4-docs/1-manual/9/9.3This section describes how to install SoftEther VPN Bridge to a Linux operating system. This assumes that in the Linux operating system, no extra application software is installed after performing a clean install of the system. This also assumes that, as a basic rule, the firewall and similar functions included in the Linux distribution are not being used, and that the function for blocking communication to TCP/IP ports from the outside (firewall function) is disabled.   9.3.1 Recommended System Recommended Operating System Configuration The Linux version of SoftEther VPN Bridge can operate in most cases on platforms with Linux kernel 2.4 or later; however, SoftEther VPN Project recommends only those environments using the following Linux distributions. (As of the time of writing this manual, this is the recommended environment; however, this may change to higher specifications in the future.) Ubuntu For more information about the system requirements, please refer to Specificatio0.054075812822727854-docs/1-manual/9/9.33222024-01-20T05:12:13Z2024-01-20T05:12:13Zhttp://www.softether.org/4-docs/1-manual/7/7.1This section describes the precautions to take before installing SoftEther VPN Server.   7.1.1 Checking the Operating Environment Before installing SoftEther VPN Server to a computer, check that the computer hardware and operating system support SoftEther VPN Server. SoftEther VPN Server supports Windows, Linux, FreeBSD, Solaris, and Mac OS X; however, this product formally supports only operating systems with Windows 2000 or later and certain Linux distributions. SoftEther VPN Server can be installed on other operating systems, but SoftEther VPN Project is not responsible for its operations. For information about the operating environment of SoftEther VPN Server, please refer to Specifications. Before installing SoftEther VPN Server, be sure to back up data stored in the installation directory of the computer (including the system registry in Windows). 7.1.2 Hard Disk Space As described in 3.10 Logging Service, SoftEther VPN Server writes large operation log files to the hard disk0.0540016246374864-docs/1-manual/7/7.12732024-01-20T11:56:15Z2024-01-20T11:56:15Zhttp://www.softether.org/4-docs/1-manual/9/9.1This section describes the precautions to take before installing SoftEther VPN Bridge.   9.1.1 Checking the Operating Environment Before installing SoftEther VPN Bridge to a computer, check that the computer hardware and operating system support SoftEther VPN Bridge . SoftEther VPN Bridge supports Windows, Linux, FreeBSD, Solaris, and Mac OS X; however, this product formally supports only operating systems with Windows 2000 or later and certain Linux distributions. SoftEther VPN Bridge can be installed on other operating systems, but SoftEther VPN Project is not responsible for its operations. For information about the operating environment of SoftEther VPN Bridge , please refer to Specifications. Before installing SoftEther VPN Bridge , be sure to back up data stored in the installation directory of the computer (including the system registry in Windows). 9.1.2 Hard Disk Space As described in 3.10 Logging Service, SoftEther VPN Bridge writes large operation log files to the hard d0.0540016246414864-docs/1-manual/9/9.13202013-03-03T10:08:46Z2013-03-03T10:08:46Zhttp://www.softether.org/4-docs/1-manual/8/8.38.3.1 Uninstallation Add or Remove Programs Window.   Remaining Configuration Files and Log Files.   8.3.2 Virtual Network Adapter The Virtual Network Adapter created by the user when using VPN Client remains on the computer after VPN Client is uninstalled, in the same way document files created by the user when using a regular application remain on the computer after that application is uninstalled. This is to prevent the deletion of the Virtual Network Adapter settings configured by the user when VPN Client is uninstalled. The Virtual Network Adapter that remains on the computer after uninstallation can be deleted using the Device Manager of Windows. Window for Deleting the Virtual Network Adapter. 0.0539462824441144-docs/1-manual/8/8.32982013-03-03T10:07:41Z2013-03-03T10:07:41Zhttp://www.softether.org/4-docs/1-manual/7/7.6This section describes how to uninstall SoftEther VPN Server from your system if you should no longer need this program.   7.6.1 Uninstallation in Windows You can uninstall the Windows version of VPN Server in the same way as uninstalling other application software, by clicking [Control Panel] > [Add or Remove Programs] and then removing the program. Add or Remove Programs Window.   To prevent the loss of configuration data created after VPN Server is installed and written log files, this data is not automatically deleted. These files remain in the VPN Server installation directory. If VPN Server is installed to the same directory thereafter, the system uses the configuration file (vpn_server.config) remaining after the previous uninstallation, so caution must be exercised. You can use Explorer to delete these remaining data files. Remaining Configuration Files and Log Files. 7.6.2 Uninstallation in Linux To uninstall the Linux version of VPN Server when vpnserver0.0537928229242114-docs/1-manual/7/7.62812013-03-03T10:09:41Z2013-03-03T10:09:41Zhttp://www.softether.org/4-docs/1-manual/9/9.5This section describes how to uninstall SoftEther VPN Bridge from your system if you should no longer need this program.   9.5.1 Uninstallation in Windows You can uninstall the Windows version of VPN Bridge in the same way as uninstalling other application software, by clicking [Control Panel] > [Add or Remove Programs] and then removing the program. Add or Remove Programs Window.   To prevent the loss of configuration data created after VPN Bridge is installed and written log files, this data is not automatically deleted. These files remain in the VPN Bridge installation directory. If VPN Bridge is installed to the same directory thereafter, the system uses the configuration file (vpn_bridge.config) remaining after the previous uninstallation, so caution must be exercised. You can use Explorer to delete these remaining data files. Remaining Configuration Files and Log Files. 9.6.2 Uninstallation in Linux To uninstall the Linux version of VPN Bridge when vpnbridge0.0537928229302114-docs/1-manual/9/9.53252025-04-16T07:49:44Z2025-04-16T07:49:44Zhttp://www.softether.org/5-download/historyThe revision history of each SoftEther VPN build is here.1 Download the latest binaries Download the source code   SoftEther VPN 4.44 Build 9807 RTM (April 16, 2025) (1) We have implemented the new "TunnelCrack Protection Function" in the VPN Client, which enhances security when using potentially untrusted public wireless Wi-Fi connections. For details, please refer to: https://ja.softether.org/9-about/news/905-TunnelCrack/ TunnelCrack is a security attack method pointed out in the paper “Bypassing Tunnels: Leaking VPN Client Traffic by Abusing Routing Tables,” presented on August 11, 2023, at the international conference USENIX Security ’23. The TunnelCrack attack method poses an issue when using a malicious, untrusted public wireless LAN. Various common VPN client software may be affected by TunnelCrack, and countermeasures on the VPN client software side are necessary. Therefore, we have added TunnelCrack protection to the VPN Client. This TunnelCrack protection featur0.0537715295736115965-download/history3872024-01-18T09:40:17Z2024-01-18T09:40:17Zhttp://www.softether.org/4-docs/1-manual/3/3.7The SoftEther VPN Server and SoftEther VPN Bridge Virtual Hubs feature SecureNAT functionality. This section will explain SecureNAT concepts, methods for setting them and precautions.   3.7.1 What is SecureNAT? SecureNAT Overview The SecureNAT function is a hitherto unknown innovative proprietary technology developed for the SoftEther VPN, the use of which enables the creation of a more secure network. The SecureNAT function is broadly divided into two parts: the virtual NAT function and the virtual DHCP server function. The Virtual Hub Administrator can enable either or both the virtual NAT and virtual DHCP server when SecureNAT is enabled. Please refer to 10.11 Exploit SecureNAT for Remote Access into Firewall without Any Permission for details on how to set up the SecureNAT function. The SecureNAT function is oriented towards System Administrators and those with a detailed knowledge of networks. Proper use of the SecureNAT function enables the realization of safe remote0.053724194571945534-docs/1-manual/3/3.72462026-01-31T11:38:56Z2026-01-31T11:38:56Zhttp://www.softether.org/3-screens/1.vpnserver  SoftEther VPN Server Manager: Server Top Page   Easy Setup Wizard   OpenVPN & MS-SSTP Clone Server Function   IPsec / L2TP / EtherIP / L2TPv3 Settings Screen   Dynamic DNS Function Screen   VPN over ICMP / VPN over DNS Function Screen   vpncmd Command-line Admin Utility   Packet Log & Server Log Setting   VPN Server Log Browser   VPN Server Information Screen   Available Encryption Algorithms   Active TCP Listners Connection List   Status of a Virtual Hub   Status of the VPN Server   New Virtual Hub Creation Screen   New Cascade Connection Setting Screen   List of Cascade Connection Screen   Security Policy for a Cascade Connection   List of Current VPN Sessions   Status of a VPN Session   Mac Address Table (aka: FDB) of Virtual Hub   IP Address Table of Virtual Hub 0.05358677315093703-screens/1.vpnserver3942013-06-04T13:00:20Z2013-06-04T13:00:20Zhttp://www.softether.org/4-docs/1-manual/6/6.6This section describes all commands that can be called when using vpncmd in Use VPN Tools Command (for example, certificate generating tools or traffic speed test tool) mode. 6.6.1 "About": Display the version information Command Name About Purpose Display the version information Description This displays the version information of this command line management utility. Included in the version information are the vpncmd version number, build number and build information. Command-line About Arguments for "About": No arguments are required.   6.6.2 "MakeCert": Create New X.509 Certificate and Private Key Command Name MakeCert Purpose Create New X.509 Certificate and Private Key Description Use this to create a new X.509 certificate and private key and save it as a file. The algorithm used to create the public key and private key of the certificate is RSA 1024 bit. Y0.053584372037117854-docs/1-manual/6/6.63572019-07-30T08:58:13Z2019-07-30T08:58:13Zhttp://www.softether.org/9-about/News/900-SEVPN201901Published: 2019/07/09 Related: CVE-2019-11868   SoftEther VPN Security Advisory articles are published for high impact vulnerabilities (an arbitrary code execution or equivalent). Summary A vulnerability in the NDIS 5.x based Local Bridge module for SoftEther VPN 4.29 Build 9680 or older could allow the local Windows-logged-on attacker (who is already logged on to the same computer which run VPN servers) to realize a Windows local authenticated privilege escalation attacks or could result in BSODs. To exploit this vulnerability, an attacker must log on to the local Windows system which is the same computer which running the SoftEther VPN Server. An attacker could then run a specially crafted program that could exploit the vulnerability. This vulnerability affects only when the server computer is running the Local Bridge function or the SecureNAT function on Windows 2000, Windows XP, Windows Vista, Windows 7 and Windows 8.0 (not Windows 8.1). Same Windows Server family of these Wi0.0531994559536709-about/News/900-SEVPN2019015202013-06-04T13:00:07Z2013-06-04T13:00:07Zhttp://www.softether.org/4-docs/1-manual/6/6.5This section describes all commands that can be called when using vpncmd in VPN Client management mode. 6.5.1 "About": Display the version information Command Name About Purpose Display the version information Description This displays the version information of this command line management utility. Included in the version information are the vpncmd version number, build number and build information. Command-line About Arguments for "About": No arguments are required.   6.5.2 "VersionGet": Get Version Information of VPN Client Service Command Name VersionGet Purpose Get Version Information of VPN Client Service Description Use this to get the version information of the currently managed VPN Client Service program. Command-line VersionGet Arguments for "VersionGet": No arguments are required.   6.5.3 "PasswordSet": Se0.053072515252787384-docs/1-manual/6/6.53562024-01-19T11:27:48Z2024-01-19T11:27:48Zhttp://www.softether.org/4-docs/1-manual/4/4.9This section describes the other functions provided with SoftEther VPN Client.   4.9.1 Changing the User Password Registered to VPN Server When standard password authentication is selected as the type of user authentication on the VPN Client Manager window for editing the connection setting, as described in 4.4 Making Connection to VPN Server, the [Change Password] button is enabled. Click this button to change the user password registered to VPN Server. To change the password, correctly enter the user name, the current password, and the new password. If the security policy of the user does not allow changes to the password, the password cannot be changed. Window for Changing the User Password Registered to VPN Server. 4.9.2 Internet Connection Maintenance Function SoftEther VPN Client has a function for maintaining an Internet connection similar to that of SoftEther VPN Server (see 3.3 VPN Server Administration). With the Internet connection maintenance function, TCP/IP or UDP/0.05305181424910554-docs/1-manual/4/4.92642024-01-20T12:36:31Z2024-01-20T12:36:31Zhttp://www.softether.org/4-docs/1-manual/9/9.2  This section describes how to install SoftEther VPN Bridge to an operating system with Windows 2000 or later. This assumes that in the Windows operating system, no extra application software is installed after performing a clean install of the system. This also assumes that the Windows function for blocking communication to TCP/IP ports from the outside (firewall function) is disabled.   9.2.1 Selecting the Installation Mode As described in 3.2 Operating Modes, SoftEther VPN Bridge can be operated in either service mode or user mode. When configuring VPN Bridge for use as part of an everyday operation system, we recommend installing SoftEther VPN Server in Bridge mode. The installer for the Windows version of VPN Bridge installs the VPN Bridge program to the system in service mode. 9.2.2 Installation Procedure Using the Installer Preparing the Installer File The installation of the Windows version of SoftEther VPN Bridge is very easy as it is almost completely performed automatic0.05305181230810154-docs/1-manual/9/9.23212024-01-18T01:46:35Z2024-01-18T01:46:35Zhttp://www.softether.org/4-docs/1-manual/3/3.2The user can operate the SoftEther VPN Server in two modes: Service Mode and User Mode. Below is an explanation of these two modes.   3.2.1 Service Mode Service Mode is the normal operating mode. Installing and operating the SoftEther VPN Server in Service Mode will cause the SoftEther VPN Server to operate in the background as a part of the OS, launch when the OS launches prior to user log in and await VPN session connection as the VPN server. In addition, the server will automatically shutdown when the operating system shuts down. The word "service" here refers to a background system service in Windows and some UNIX operating systems and is sometimes referred to as a daemon in other operating systems. When the VPN Server is operating in Service Mode, said operation is not depended upon by users currently logged onto the operating system. That is why we recommend running the VPN Server in Service Mode on most occasions. When using the VPN Server in Service Mode, the VPN Server process0.052939991916722514-docs/1-manual/3/3.21742024-01-20T03:16:59Z2024-01-20T03:16:59Zhttp://www.softether.org/4-docs/1-manual/5/5.2The user can operate the SoftEther VPN Bridge in two modes: Service Mode and User Mode. Below is an explanation of these two modes.   5.2.1 Service Mode Service Mode is the normal operating mode. Installing and operating the SoftEther VPN Bridge in Service Mode will cause the SoftEther VPN Bridge to operate in the background as a part of the OS, launch when the OS launches prior to user log in and await VPN session connection as the VPN Bridge . In addition, the server will automatically shutdown when the operating system shuts down. The word "service" here refers to a background system service in Windows and some UNIX operating systems and is sometimes referred to as a daemon in other operating systems. When the VPN Bridge is operating in Service Mode, said operation is not depended upon by users currently logged onto the operating system. That is why we recommend running the VPN Bridge in Service Mode on most occasions. When using the VPN Bridge in Service Mode, the VPN Bridge proces0.052939991936122524-docs/1-manual/5/5.22672013-03-01T16:08:49Z2013-03-01T16:08:49Zhttp://www.softether.org/1-features/3._Security_and_Reliability3.1. Excellent Security and Reliability, Superior to Hardware You might have a question that whether SoftEther VPN is really secure as same as hardware VPN products or not. Someone might think that software VPNs is inferior to hardware VPNs. Of course, SoftEther VPN is implemented as a software code, not hardware as either specific integrated circuit. But it is absolutely correct that SoftEther VPN has an adequate security fulfillment as same as hardware's one, and moreover it might be superior to hardware VPN. What is Hardware VPN Products? Please see the fact that almost all hardware VPNs on the today's market is not a pure hardware. They are nearly software program, actually. Do you have any experience to open the top cover of any Cisco Router? You can see that inside devices on the Cisco Router is almost same as today's computer. The major differences are only the architecture of CPU. To reduce the manufacturing cost, Cisco and other VPN vendors adopts cheaper CPU than computers, such as M0.052875394015640491-features/3._Security_and_Reliability912019-01-21T00:47:19Z2019-01-21T00:47:19Zhttp://www.softether.org/5-download/srcSoftEther VPN Server, Client and Bridge are free software, and released as open-source. You can redistribute them and/or modify them under the terms of the Apache License 2.0 as published by the Free Software Foundation. SoftEther VPN Becomes Open Source (1/4/2014) January 21, 2019 The Development Board of the SoftEther VPN project hereby presents this declaration of license switch from GNU General Public License version 2 (GPLv2) to Apache License version 2.0. The change of the license takes effect immediately after this Declaration is published.   Download the latest source code package The source code packages in .zip and .tar.gz format are available from: https://www.softether-download.com/ This is the easiest way to obtain the source code of SoftEther VPN.   Build the programs from the source code To build from the source, see "BUILD_UNIX.TXT" or "BUILD_WINDOWS.TXT" files in the package, or see the following links. How to build SoftEther VP0.0528424576876445-download/src3892026-02-27T07:21:31Z2026-02-27T07:21:31Zhttp://www.softether.org/4-docs/1-manual/A/10.CBy combining the “VPN Azure” feature built into SoftEther VPN Server with the VPN Azure Service, you can create a remote access environment to your company LAN even when it is difficult to open firewall or NAT ports. This section explains how to use the VPN Azure feature to remotely access a LAN from an external location. 10.12.1 Overview of VPN Azure Make your office PC a dedicated VPN server for yourself. Conventional VPN server products needs to be installed and configured by network administrators. NAT or firewall must be set up to open a TCP/UDP port. At least one fixed and global IP address necessary. VPN Azure deregulates that limitation. If you use VPN Azure, you can connect from your home or mobile PC into your office PC easily. Your office PC becomes your dedicated VPN server. The VPN server initiates the TCP tunnel from the office PC towards a VPN Azure Cloud relay server, by behaving a normal HTTPS connection. Once such a "from behind a firewall" connection established, you can now0.052828191394211484-docs/1-manual/A/10.C7282024-02-27T10:32:25Z2024-02-27T10:32:25Zhttp://www.softether.org/4-docs/2-howto/9.L2TPIPsec_Setup_Guide_for_SoftEther_VPN_Server/1.Setup_L2TP%2F%2F%2F%2FIPsec_VPN_Server_on_SoftEther_VPN_ServerThe IPsec VPN Server Function is disabled by default. You can enable it easily as the following steps. Configuration Guide The VPN Server configuration is very easy.   Start VPN Server Manager Start SoftEther VPN Server Manager (which runs on Windows, but it can connect to remote SoftEther VPN Server running on Linux, Mac OS X or other UNIX). On the Server Manager, you can see the "L2TP/IPsec Setting" button. Click it.   VPN Server Manager Main Window   The following screen will appear. Each IPsec Server Function can be turned on / off on this screen.   IPsec / L2TP / EtherIP / L2TPv3 Settings Screen   The meanings of each option are followings: L2TP Server Function (L2TP over IPsec) This function is for accepting VPN connections from iPhone, iPad, Android, and other smartphones, and built-in L2TP/IPsec VPN Client on Windows or Mac OS X. Enable it if you want to support one of these devices as VPN Client.   L2TP Server Function (Raw L2TP0.052618471335211374-docs/2-howto/9.L2TPIPsec_Setup_Guide_for_SoftEther_VPN_Server/1.Setup_L2TP////IPsec_VPN_Server_on_SoftEther_VPN_Server3632026-01-31T12:56:34Z2026-01-31T12:56:34Zhttp://www.softether.org/4-docs/1-manual/7/7.2This section describes how to install SoftEther VPN Server to an operating system with Windows 2000 or later. This assumes that in the Windows operating system, no extra application software is installed after performing a clean install of the system. This also assumes that the Windows function for blocking communication to TCP/IP ports from the outside (firewall function) is disabled.   7.2.1 Selecting the Installation Mode As described in 3.2 Operating Modes, SoftEther VPN Server can be operated in either service mode or user mode. When configuring VPN Server for use as part of an everyday operation system, we recommend installing SoftEther VPN Server in service mode. The installer for the Windows version of VPN Server installs the VPN Server program to the system in service mode. 7.2.2 Installation Procedure Using the Installer Preparing the Installer File The installation of the Windows version of SoftEther VPN Server is very easy as it is almost completely performed automatically.0.052604561712313764-docs/1-manual/7/7.22742013-03-16T11:43:53Z2013-03-16T11:43:53Zhttp://www.softether.org/9-about/What_is_different_between_SoftEther_VPN_and_VPN_Gate%3FWe have great appreciation that SoftEther Project is mentioned by many news articles around the world recently. Unfortunately, some news articles seem to misunderstandd as if SoftEther Project is exactly equal to VPN Gate Project. That is not correct. So we would like to explain the difference between two projects here.   What is SoftEther Project? SoftEther Project is to develop and distribute secure, cross-platform, easy-to-use and multi-protocol SoftEther VPN software.   What is VPN Gate Project? VPN Gate Project is to develop and distribute VPN Gate software which is a plug-in module for SoftEther VPN.   So what is SoftEther VPN? SoftEther VPN is a VPN suite. You can make your own private VPN by using SoftEther VPN. For example, you install SoftEther VPN Server in your office. You return to home, and install SoftEther VPN Client in your home. Then your home PC can connect to your office. This is Remote-access VPN. Or, you install SoftEther VPN Server in your hea0.0525278393838049-about/What_is_different_between_SoftEther_VPN_and_VPN_Gate?4072024-01-25T17:25:04Z2024-01-25T17:25:04Zhttp://www.softether.org/4-docs/1-manual/A/10.2This section will look at topics that you need to know about when setting up any type of VPN.   10.2.1 VPN Server Location VPN Server Reachability at The TCP/IP Level A VPN Server must deal with connection requests from VPN Clients, VPN Bridges, and, in some situations, from other VPN Servers. Therefore, a VPN Server must be installed to a location that meets the following requirement: TCP/IP communication must be possible between the VPN Server and any VPN clients that wish to connect to it. (If you can go through a proxy server or change your NAT settings to allow traffic through certain TCP/IP ports to your private IP addresses then that is sufficient.) When setting up a VPN network with older VPN protocols such as PPTP or L2TP/IPSec, the VPN server must be a computer with a public IP address to the Internet. However with SoftEther VPN you don't have to install VPN Server on a computer with a public IP address. VPN Server will work just fine on a computer behind NAT or a f0.052424812023118384-docs/1-manual/A/10.23292013-03-02T12:29:40Z2013-03-02T12:29:40Zhttp://www.softether.org/4-docs/1-manualWelcome to SoftEther VPN Official Manual. This is the technical reference which describes most part of all functions of SoftEther VPN. You should read Why SoftEther VPN? before reading this manual.   0. Introduction 0.1 Welcome to SoftEther VPN 0.2 Before Reading the Manual 1. SoftEther VPN Overview 1.1 What is SoftEther VPN? 1.2 SoftEther VPN Components 1.3 SoftEther VPN is Freeware 1.4 VPN Processing Principle and Communication Method 1.5 Strong Security Features 1.6 VPN Communication Details 1.7 Large Load VPN by Clustering 1.8 Multilanguage Support 1.9 VoIP / QoS Support Function 2. SoftEther VPN Essential Architecture 2.1 VPN Communication Protocol 2.2 User Authentication 2.3 Server Authentication 2.4 VPN Server Manager 2.5 VPN Client Manager 2.6 VPN Command Line Management Utility (vpncmd) 3. SoftEther VPN Server Manual 3.1 Operating System Requirements 3.2 Operating Modes 3.3 VPN Server Administration 3.4 Virtual Hub Functions 3.5 Virtual Hub Security Features 3.6 Loca0.05238095236565354-docs/1-manual1172014-02-10T10:59:33Z2014-02-10T10:59:33Zhttp://www.softether.org/4-docs/1-manual/1/1.8  The user interface internal data structure and communications protocol for SoftEther VPN supports multiple languages. This enables localization for various languages for use of VPN service for multinational companies and for SoftEther VPN itself. 1.8.1 Unicode Support SoftEther VPN uses Unicode character code for the internally used data structure, interface to be actually used, and TCP/IP-based communications protocol communicated as SoftEther VPN protocol. So multiple language characters can be set and communicated mixed. Data Structure Unicode Support Of user information and group information for SoftEther VPN, parts using multibyte characters for names and explanations, etc., and parts where there is a high probability of multibyte character code other than numbers (full size characters such as hiragana and kanji) has been used for treatment of registration item X.509 certificate for various other objects that are managed by Unicode. In a Windows environment, UTF-16 Little Endian is 0.0523809554715774-docs/1-manual/1/1.81542024-01-21T10:31:58Z2024-01-21T10:31:58Zhttp://www.softether.org/4-docs/1-manual/A/10.7This section will explain how to take the network configurations looked at in sections 10.4 Build a Generic Remote Access VPN and 10.5 Build a LAN-to-LAN VPN (Using L2 Bridge) and use them together.   10.7.1 Using LAN-to-LAN Communication and Remote Access Together In section 10.5 Build a LAN-to-LAN VPN (Using L2 Bridge) you read about a LAN-to-LAN VPN which was set up with VPN Server installed on the main LAN and VPN Bridge installed on the sub-LANs. The VPN Server installed on the main LAN for this type of network configuration can also receive VPN connection requests from VPN Clients. This means that it can be the VPN Server for the LAN-to-LAN VPN and the VPN Server for a remote access VPN at the same time. The figure below illustrates what it would look like if a user at a remote location (such as from a hotel on a business trip) made a remote access VPN connection to the VPN Server on the main LAN (Tokyo). An Example of How to Use a LAN-to-LAN Network and Remote Access Together. 0.0523809548044824-docs/1-manual/A/10.73342024-01-26T11:48:36Z2024-01-26T11:48:36Zhttp://www.softether.org/4-docs/1-manual/A/10.9Corporations or Internet service providers (ISPs) can use their high speed backbone network and their large number of servers to create a large scale Virtual Hub hosting service for their employees or clients with SoftEther VPN Server. This section will give more information about this type of Virtual Hub hosting service, and how to set one up.   10.9.1 The Necessity of a Virtual Hub Hosting Service What is a Virtual Hub Hosting Service? By installing VPN Server on a powerful server computer on a very high speed connection and creating multiple Virtual Hubs on that VPN Server you can provide usage rights to these Virtual Hubs to your clients or employees. This is the type of Virtual Hub hosting service described here. This type of Virtual Hub hosting service is also called a hosting VPN or an ASP VPN. The idea behind a Virtual Hub hosting service is to set up a clustered VPN Server system, and then create a large number of Virtual Hubs on those VPN Servers. Then you would give administ0.052380952483924114-docs/1-manual/A/10.93362025-05-23T12:19:35Z2025-05-23T12:19:35Zhttp://www.softether.org/4-docs/1-manual/3/3.5This section explains the Virtual Hub security functions, methods for their setting and important points to be aware of.   3.5.1 Delegating Virtual Hub Administration Authority Entire VPN Server Administrators & Virtual Hub Administrators Administrators of the entire SoftEther VPN can set passwords for Virtual Hubs and delegate the authority for their individual administration to Virtual Hub Administrators. The Virtual Hub Administrators are then required to use the Virtual Hub name and password which they are assigned to connect to the VPN. Moreover, the areas which can be administered are limited by their own Virtual Hub's settings, which cannot be enabled to obtain information on other Virtual Hubs. While individual Virtual Hub Administrators may view the settings of the entire VPN Server, they are not able to change them. Furthermore, no access whatsoever is possible to data containing confidential items such as the VPN Server's Configuration file and SSL Certificate private key fi0.052375348372068084-docs/1-manual/3/3.52442025-01-02T00:41:29Z2025-01-02T00:41:29Zhttp://www.softether.org/3-specBasic Capabilities of SoftEther VPN Server Maximum Concurrent VPN Sessions 4,096 Sessions Maximum Virtual Hubs 4,096 Virtual Hubs Remote Access VPN Layer-2 (Ethernet Bridging) Layer-3 (IP Routing) Site-to-Site VPN Layer-2 (Ethernet Bridging) Layer-3 (IP Routing) Traffic Control VoIP / QoS Priority Control Traffic Shaping for Per Users or Groups Maximum Objects in a Virtual Hub Users: 10,000 Groups: 10,000 Access List Entries: 32,768 MAC Address Table Entries: 65,536 IP Address Table Entries: 65,536 Cascade Connections: 128 SecureNAT Function Virtual NAT Function: Maximum 4,096 Dynamic Mapping User-mode NAT Kernel-mode NAT Virtual DHCP Function High Availability and Clustering Maximum Cluster Members: 64 Load Balancing Load Balancing Weight Control Dynamic Mode Virtual Hub Mapping over Cluster Members Static Mode Virtual Hub Mapping over Cluste0.052369712935112493-spec952024-01-19T08:29:06Z2024-01-19T08:29:06Zhttp://www.softether.org/4-docs/1-manual/4/4.6SoftEther VPN Client supports Public Key Infrastructure (PKI) using smart cards. This section describes how to use SoftEther VPN Client together with smart cards. For an overview of smart card authentication, please refer to 1.5 Strong Security Features.   4.6.1 Smart Card Device Driver Required Device Driver To use the PKI function along with a smart card or hardware security token compatible with a smart card (hereafter collectively referred to as "smart card"), the following two device drivers must be installed on the client computer. Device driver of the smart card reader or other hardware device Device driver with PKCS#11 interface that supports the smart card in use In addition, after installing VPN Client and then installing the smart card reader and smart card device driver, you must restart the VPN Client service or the computer. Furthermore, if any settings need to be made in order to use the smart card with the smart card reader or smart card device driver, you0.052368561410510614-docs/1-manual/4/4.62582024-01-27T07:25:00Z2024-01-27T07:25:00Zhttp://www.softether.org/4-docs/1-manual/A/10.BBefore, administrator rights were a necessity when setting up a remote access VPN. But by using the SecureNAT capability built in to SoftEther VPN Server and SoftEther VPN Bridge you can build a remote access VPN that does not require administrator rights but retains all of the same functionality. This section will explain how to use SecureNAT to enable you to access your LAN from a remote location.   10.11.1 Utilizing SecureNAT to Make Things More Convenient About SecureNAT As explained in section 3.7.1 What is SecureNAT?, SecureNAT consists of the TCP/IP stack operated in user mode and Virtual NAT/Virtual DHCP Server. In particular, when IP access via Virtual NAT is performed the data is automatically relayed to the host using Socket API at the user level. This is a very advanced and intriguing technology. Accessing an Extremely Secure LAN Via Remote Access That Was Not Possible With Previous Technologies As explained in section 10.4 Build a Generic Remote Access VPN, to set up a VPN to0.052358363178231154-docs/1-manual/A/10.B3412024-01-26T10:14:23Z2024-01-26T10:14:23Zhttp://www.softether.org/4-docs/1-manual/A/10.8If you expect a large number of simultaneous connections to your VPN Server based remote access VPN system like the one described in section 10.4 Build a Generic Remote Access VPN, you can use the clustering capability to perform load balancing across multiple VPN Servers. This allows you to decrease the load on each VPN Server and increase overall throughput. It also allows you to automatically introduce fault-tolerance into your network design.   10.8.1 VPN Server's Processing Limit A single VPN Server can theoretically handle up to 4,096 sessions at once. So, a VPN Server being used for a remote access VPN could handle approximately 4,000 VPN Client connections simultaneously. However, the problem in reality is not software limitations but hardware limitations such as limited memory capacity or CPU processing speed. That being said, if 4,000 VPN sessions were handled by a single VPN Server there would be issues such as significant transmission speed loss or insufficient memory on the VPN Se0.052211591477015814-docs/1-manual/A/10.83352014-01-06T11:29:15Z2014-01-06T11:29:15Zhttp://www.softether.org/9-about/News/800-open-sourceJanuary 4, 2014 By Daiyuu Nobori, SoftEther VPN Project at University of Tsukuba, Japan.     We are very happy to announce that the source code of SoftEther VPN is released as open-source software under the GPLv2 license. SoftEther VPN is the underlying VPN engine of VPN Gate. The source code is provided as packages in .tar.gz and .zip formats, and is also published on our GitHub repository. You can build the full SoftEther VPN programs from the source code in Windows, Linux, Mac OS X, FreeBSD or Solaris computers. You can also generate your own customized installer packages of SoftEther VPN automatically from the source code. Download the Source Code   SoftEther VPN is a product-class VPN software suite with popularity as a tool to build on-premise or cloud-base VPNs. The binaries of SoftEther VPN were released on March 8, 2013. Since then, SoftEther VPN Server has been installed into over 80,000+ server computers in Japan, United States, China, Taiwan, Iran, Germany, United0.05221062139216529-about/News/800-open-source5072024-01-20T11:24:18Z2024-01-20T11:24:18Zhttp://www.softether.org/4-docs/1-manual/8/8.2This section describes how to install SoftEther VPN Client to an operating system with Windows 2000 or later. This assumes that in the Windows operating system, no extra application software is installed after performing a clean install of the system.   8.2.1 Installation Procedure Using the Installer Preparing the Installer File The installation of the Windows version of SoftEther VPN Client is very easy as it is almost completely performed automatically. To install VPN Client, you can download the latest VPN Client installer file from the SoftEther VPN Project website (Download). VPN Client Installer Starting the Installer Start the installer by double-clicking the VPN client installer file. Using the installation wizard, you can select the name of the installation directory. (By default, the program is installed to Program Files\SoftEther VPN client on the system drive.) The VPN Server process writes large log files to the installation directory, so we recommend selecting an are0.05215732107887804-docs/1-manual/8/8.22972025-05-31T12:59:45Z2025-05-31T12:59:45Zhttp://www.softether.org/4-docs/1-manual/3/3.4SoftEther VPN Server makes it possible to create a plurality of Virtual Hubs, and to separate administration objects and VPN session layer 2 communication between each Virtual Hub. This manual explains Virtual Hubs in two parts: general operations & administration methods, and security functions. First is an explanation of the general operations and methods for administration of Virtual Hubs.   3.4.1 Creating Virtual Hubs Multiple Virtual Hubs can be created in the SoftEther VPN Server, but they can only be created or deleted by entire VPN Server Administrators. When the VPN Server creates a Virtual Hub, it is possible to delegate the authority for its administration to another party by providing them with the Virtual Hub administration password. To create a new Virtual Hub, click on the [Create Virtual Hub] tab in the VPN Server Manager and enter the relevant details. Alphanumeric characters and some symbols can be used in the Virtual Hub name. It is also possible to designate a Virtual Hub a0.052150317606968054-docs/1-manual/3/3.41772025-04-16T07:52:55Z2025-04-16T07:52:55Zhttp://www.softether.org/ SoftEther VPN Project develops and distributes SoftEther VPN, An Open-Source Free ​Cross-platform Multi-protocol VPN Program, as an academic project from University of Tsukuba, under the Apache License 2.0. Click here for software update history and to download the latest version SoftEther VPN 4.44 Build 9807 RTM (April 16, 2025) We have resolved several software bugs. Additionally, we officially released a protection feature against TunnelCrack to strengthen security. TunnelCrack protection implemented in SoftEther VPN Client (August 31, 2023) SoftEther VPN 4.42 Build 9798 RTM (June 30, 2023) As a result of a high-level code review and technical cooperation by Cisco Systems, Inc. of the United States, six vulnerabilities, including CVE-2023-27395, have been fixed. The risk of exploitation of any of the fixed vulnerabilities is relatively low under normal usage and environment, and actual attacks are not easy to conduct, We recommend that you update your software as much as possi0.05205346475682589222017-10-19T06:51:28Z2017-10-19T06:51:28Zhttp://www.softether.org/1-features  SoftEther VPN is one of the most powerful and easiest VPN software in the world. It is freeware, developed as an academic research project in University of Tsukuba, Japan. Download SoftEther VPN and enjoy it today. It is open source. Walkthrough Read the walkthrough to grasp the key features and advantages of SoftEther rapidly. 1. Ultimate Powerful VPN Connectivity 2. Layer-2 Ethernet-based VPN 3. Security and Reliability 4. Fast Throughput and High Ability 5. Easy Installation and Management Features Free and open-source software. Easy to establish both remote-access and site-to-site VPN. SSL-VPN Tunneling on HTTPS to pass through NATs and firewalls. Revolutionary VPN over ICMP and VPN over DNS features. Resistance to highly-restricted firewall. Ethernet-bridging (L2) and IP-routing (L3) over VPN. Embedded dynamic-DNS and NAT-traversal so that no static nor fixed IP address is required. AES 256-bit and RSA 4096-bit encrypti0.052053463940318761-features812024-01-17T09:54:29Z2024-01-17T09:54:29Zhttp://www.softether.org/4-docs/1-manual/1/1.1SoftEther VPN is next-generation VPN software that offers stability, flexibility and expandability, and is compatible with all advanced networks that produce wide bandwidth an high load required by large corporations and Internet providers as well as networks for individuals and homes and networks for small and medium size businesses. This section contains an overview of SoftEther VPN, a comparison with older VPN protocol, and a description of its advanced functions. 1.1.1 History SoftEther VPN was previously developed and distributed as "SoftEther 1.0". SoftEther (old) was developed by Daiyuu Nobori, a student of University of Tsukuba, as a personal project. "SoftEther" was software that enabled users to construct a simple layer 2 VPN by installing a Virtual Network Adapter and Virtual Ethernet Switching Hub on Windows, and was distributed as freeware. "SoftEther" later became a project of the research and development project of Japanese Government, subsidized by Ministry of Economy, Trade and In0.052037483775836784-docs/1-manual/1/1.11382025-06-30T07:42:29Z2025-06-30T07:42:29Zhttp://www.softether.org/4-docs/1-manual/A/10.4This section will explain how to set up a generic remote access VPN.   10.4.1 Connecting to a LAN Remotely In enterprise situations the most widely used type of VPN is the remote access VPN. By using a remote access VPN you can utilize an extremely inexpensive network such as the Internet to connect to your company's LAN from a remote location. Also, unlike with older protocols like L2TP/IPSec or PPTP, SoftEther VPN does not use IP routing and allows you to directly connect to a layer 2 segment. Using this type of VPN it is possible to connect to a company LAN from outside the office (for example, from an employee's house or from a hotel on a business trip) just as if they were connected by an extremely long Ethernet cable. 10.4.2 Using Local Bridging To build a remote access network you must create a Virtual Hub in your VPN Server and connect it to the target LAN already in place via a local bridge connection. Please refer to section 3.6 Local Bridges for more information about local 0.052037483321727484-docs/1-manual/A/10.43312025-06-24T13:48:47Z2025-06-24T13:48:47Zhttp://www.softether.org/4-docs/1-manual/2/2.2With SoftEther VPN, security is ensured by conducting strict user authentication when a new VPN session attempts to connect to a Virtual Hub to prevent a security violation whereby an unauthorized third party could connect to a Virtual Hub without permission. In order to conduct user authentication, the Virtual Hub administrator must create users for the SoftEther VPN Server in advance, select from among 6 types of user authentication and specify the required parameters. A type of user authentication can be specified for each created user. For example you can easily make it where Mr. A and Mr. B can connect to VPN by password authentication but the communications contents are limited by security policy and access list, and Mr. C can only connect with stricter certificate authentication but limitations are lenient. The is section contains a description of each type of user authentication. 2.2.1 Anonymous Authentication Anonymous authentication is the simplest type of user authentication. If0.051894683353933624-docs/1-manual/2/2.21612019-02-28T01:58:59Z2019-02-28T01:58:59Zhttp://www.softether.org/1-features/2._Layer-2_Ethernet-based_VPN2.1. Full Ethernet Virtualization The key concept of the method of realizing VPN by SoftEther VPN is the full virtualization of Ethernet segments, layer-2 Ethernet switches and Ethernet adapters. In order to establish good VPN network, SoftEther VPN virtualizes Ethernet, which is widely used all over the World. To understand the advantage of SoftEther VPN, please read the basis knowledge about Ethernet and it's limitation at first. And you will understand how SoftEther VPN resolves it in order to establish private communications between remote sites.   SoftEther VPN encapsulates Ethernet over HTTPS to transmit frames over Internet. Ethernet is the Standard of LAN As you know, Ethernet is a technology for using on LANs (Local Area Networks). Ethernet is very convenient and reliable standard in order to connect several computers together. With Ethernet, you can enjoy many network programs such as file sharing, printer sharing and accessing amounts of data on RDBMS (Relational Database0.051815713536541851-features/2._Layer-2_Ethernet-based_VPN902025-06-28T12:53:34Z2025-06-28T12:53:34Zhttp://www.softether.org/4-docs/1-manual/3/3.6The local bridge is a function often used by the SoftEther VPN to make VPN connections. Local bridging is used to connect a virtual network and a physical network on the Ethernet level. This section will explain local bridge concepts, methods for setting them and precautions.   3.6.1 What is a Local Bridge? The local bridge connection function (herein referred to as local bridge) can connect a Virtual Hub operating on the VPN Server or VPN Bridge and the physical network adapter connected to that server computer on a layer 2 connection, thereby joining two segments which originally operated as separate Ethernet segments into one. Local bridging enables a computer connected to a Virtual Hub and a computer connected to a physical LAN to communicate freely on an Ethernet level connected, in theory, to the same Ethernet segment, regardless of whether each of them is physically linked to a separate network. Using a local bridge makes it possible to easily construct a remote-access VPN and site-0.051710083643534784-docs/1-manual/3/3.62452024-01-19T07:56:43Z2024-01-19T07:56:43Zhttp://www.softether.org/4-docs/1-manual/4/4.4After installing SoftEther VPN Client and creating a Virtual Network Adapter, configure a connection setting to connect to the Virtual Hub of the desired SoftEther VPN Server. This section describes the information that must be entered when creating a connection setting. The settings described here are, for the most part, the same as the settings used to configure a cascade connection to VPN Server or VPN Bridge on a separate computer using the Virtual Hub of VPN Server or VPN Bridge described in 3.4 Virtual Hub Functions. The windows for editing the connection setting of the cascade connection and VPN Client are nearly the same, and the resulting operations when the connection settings are edited are also the same. Refer to the information described here when configuring a cascade connection.   4.4.1 Selecting the Proper Connection Method Creating a Connection Setting At the time SoftEther VPN Client is installed, no connection settings exist. To establish a VPN connection to SoftEther VP0.051710085276838914-docs/1-manual/4/4.42562023-06-30T04:09:22Z2023-06-30T04:09:22Zhttp://www.softether.org/9-about/News/904-SEVPN202301June 30, 2023 by Daiyuu Nobori   Related: CVE-2023-27395, CVE-2023-22325, CVE-2023-32275, CVE-2023-27516, CVE-2023-32634, CVE-2023-31192   SoftEther VPN Security Advisory articles are published for high impact vulnerabilities (an arbitrary code execution or equivalent).   The SoftEther VPN project received a high level code review and technical assistance from Cisco Systems, Inc. of the United States from April to June 2023 to fix several vulnerabilities in the SoftEther VPN code.   The risk of exploitation of any of the fixed vulnerabilities is low under normal usage and environment, and actual attacks are very difficult. However, SoftEther VPN is now an open source VPN software used by 7.4 million unique users worldwide, and is used daily by many users to defend against the risk of blocking attacks by national censorship firewalls and attempts to eavesdrop on communications. Therefore, as long as the slightest attack possibility exists, there is great value in preventing vuln0.051710083809038079-about/News/904-SEVPN202301523