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VPN Service


  • You can use various services that are available only within the university by using the existing internet connection through ISP and such.
  • VPN services IPSec VPN.
    Kind of VPN Pros Cons
    SSL-VPN (WebVPN) Easy to use.Some services are not available.
    IPSEC-VPN It can be used with Windows/Mac/iOS/Android.
    It can be used not only with SFC-CNS, but also with university networks sudh as keio.jp via VPN.
    You need to install the client program.

How to use VPN


  • You can safely access the campus network from your browser.
  • You don't need to install the client.
  • If you want to use an application such as a terminal, please use IPSec-VPN.


  • It leads all communication with CNS to the route protected by IPSec.
  • It allows to use services such as ftp, telnet and pop (except POP over SSL) that are prohibited from accessing from outside of CNS.
  • You can use this with Windows/macOS/iPhone/Android, but you need to install GlobalProtect Client.


IPSec-VPN Specification
Encryption AlgorithmAES-128-CBC
Client Pool Address133.27.134.0/24
Access RouteRoute all traffic via VPN

IPSec-VPN specifications for vpn4
Clien Pool Address133.27.133.0/24, 2001:df2:c900:2510::/64
RouteCommunication via VPN for all routes

Modification history

Last-Modified: September 20, 2023

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