Connecting to the VPN
Once you have installed OpenConnect and checked that you have a
vpnc-script which will set up the routing and DNS for it, using OpenConnect
is very simple. As root, run the following command:
openconnect --script /etc/vpnc/vpnc-script https://vpn.mycompany.com/
To start with, you can ignore anything you see in the technical page about needing to patch OpenSSL so that DTLS works — you don't really need it, although it will make your connections much faster if you're experiencing packet loss between you and the VPN server. But you can worry about that later.