In order to access the enterprise intranet remotely, we have to use the Cisco AnyConnect VPN client. We're allowed to install it on any personal machines, and they provide downloads and instructions for Windows, Mac and Linux. This works fine except for the routing table configurations they provide.
They route everything except the 10.0.0.0/8 and 188.8.131.52/8 (that's not a typo) subnets over the VPN. This is baked into the client and I can't find a way to change it. All I really need are ports 80, 443 and 22 for a small Class C subnet routed through the VPN tunnel.
Is there a way to change the routing table configurations? Barring that, would it be possible to setup a linux VM with an HTTP/S proxy and SSH that route over the VPN tunnel?