Cisco VPN – client for Linux – Ubuntu Server 7.10 & 8.04

By default, the server versions of Ubuntu seem to be installing a kernel that is multiprocessor and Cisco VPN client 4.09 is not compatible with the multiprocessor kernel.

At your server prompt, do ‘uname -a

Cisco documentation link

So, I ended up using vpnc client which works from the command line and works fine.

In order to use Ubuntu desktop, here is the work around – http://www.blog.arun-prabha.com/2008/05/01/cisco-vpn-installation-issue-with-ubuntu-804-hardy-heron/