Package vpnc

IPSec VPN client compatible with Cisco equipment

http://www.unix-ag.uni-kl.de/~massar/vpnc/

A VPN client compatible with Cisco's EasyVPN equipment.

Supports IPSec (ESP) with Mode Configuration and Xauth. Supports only
shared-secret IPSec authentication, 3DES, MD5, and IP tunneling.

General Commands (Section 1)
cisco-decrypt
This command accompanies vpnc. It decrypts the obfuscated pre-shared key from *.pcf-configuration files, which must be specified on the command line. The result...
System Administration (Section 8)
vpnc
This manual page documents briefly the vpnc and vpnc-disconnect commands. vpnc is a VPN client for the Cisco 3000 VPN Concentrator, creating a IPSec-like...