Here’s a small bash script wrapper for vpnc, the open-source VPN client for Cisco’s vpn concentrator. Put it in your path, and make sure you have an entry for you in your /etc/sudoers file (see comments in the script file for more info), and then connect, query status, or disconnect with:
vpn on
vpn status
vpn off
As noted in the script it might be just as easy to “vpnc” or “vpnc-disconnect” but this has the added bonus of reporting elapsed connection time.
Cyber Feen 
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