Last month I had no other alternative but to reach a server through a Check Point’s VPN. Fortunately the editor provides a Linux client to access its proprietary stack.
The version I found to work on my Ubuntu 11.04 is the SSL Network Extender (SNX) R71 package that can be downloaded there (source).
Just for reference, the build working for me is numbered 800005013, and here is a copy of what to expect when the connection succeed:
1$ snx -s vpn.example.net -u my_user
2Check Point's Linux SNX
3build 800005013
4Please enter your password:
56
SNX - connected.
78
Session parameters:
9===================
10Office Mode IP : 10.32.10.23
11DNS Server : 10.168.10.1
12Secondary DNS Server: 10.168.10.2
13Timeout : 3 hours