Using WebUI through Cisco VPN connection

I am trying to remotely manage my firewalls while remotely connected
via vpn connection to a Cisco VPN concentrator. I am able to connect
to the managable interface, get the log-in page and authenticate.
However, once I authenticate I am never able to display the webui page.
 It eventually sits there and then gives me a "page cannot be
displayed" message. It is set up to manage via HTTP (shipping to
HTTPS) and when I am on the VPN concentrator I have an IP that is on
the same network/subnet as the firewall. I don't even pass through the
firewall to access the concentrator. Any ideas why this works
everywhere but through the VPN concentrator?
Received on Mon May 1 01:08:48 2006