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IIJ Strengthens VPN Functions on IIJ Routers and Remote Access Solution

dl button PDF [87 KB] 03 October 2011

TOKYO-October 3, 2011-Internet Initiative Japan Inc. (IIJ, NASDAQ: IIJI, TSE1: 3774), one of Japan's leading Internet access and comprehensive network solutions providers, today announced it has expanded the VPN function of its proprietary router products and remote access solution with the addition of the Secure Socket Tunneling Protocol (SSTP).

SSTP has been added to the following products and solution.

  • IIJ's proprietary SEIL series routers (SEIL/X1, SEIL/X2, SEIL/B1, SEIL/x86)
  • IIJ Secure Remote Access

SSTP is a VPN protocol that uses SSL and comes preinstalled with Windows Vista SP1, or later versions of Windows. Using Windows' standard virtual dialup connection function, a secure remote access connection can be established from anywhere. SSTP has the following features:


Remote access connections to the corporate network can be established regardless of the client connection environment

Using the common VPN protocols PPTP or L2TP/IPsec to establish a remote connection creates several problems. For example, VPN connections from multiple computers are not allowed when using a NAT router. SSTP does not have these limitations and can be used to set up a stable VPN connection over traditional Internet connections, hotel connections, wireless LAN hotspots, and other NAT environments, as well as proxy servers.

SSTP can be used without changing network settings

In the past, routers, firewalls, and other network equipment would have to be configured in order to use a VPN protocol. SSTP, however, establishes a VPN connection using the HTTPS port and TLS/SSL, which removes the need for reconfiguring network devices and makes it easy to start using remote access.

Client devices are easy to configure

Just as with PTP, L2TP/IPsec, and other protocols, no new software is required on the client device when using Windows standard virtual dialup function and SSTP to create a VPN connection. Remote access is very easy to implement with a few simple changes. By automatically setting the VPN connection type in advance, it is easy to switch from PPTP to SSTP.

While SSTP comes preinstalled on Windows computers and servers, it does not exist on most other equipment, making this the first router and solution in Japan to come with SSTP preinstalled. The SEIL series sold from today forward will have SSTP built into the firmware. If using IIJ's proprietary network service management solution, IIJ SMF sx Service, existing SEIL routers can be remotely upgraded with SSTP. 
IIJ Secure Remote Access has been SSTP compatible for no extra cost since October 28, 2011. Used in conjunction with the standard terminal authentication feature, a more secure remote access connection can be established.

IIJ will continue to develop new services and features to help our client's build a secure network environment.

(*) A separately SSL certificate is required to use SSTP.