I have installed Ubuntu 11.10. I am facing a problem connecting via LAN. We have a firewalled network. After entering static IP, gateway, DNS, etc., it shows connection as established but we are unable to use the Internet using the wired connection (LAN).
While checking system testing following error shows under network test:
ERROR:root:Could not find def gateway info in /proc
ERROR:root:Could not find default gateway by running route