Set up 2 OES Linux SP servers exactly alike (I think!).

Server #1 has Internet access as expected.

Browser on 2nd server can't get to any websites, so rug doesn't work
among other things. Everything is pingable from the server #2: other
servers, the gateway, external IP addresses and by domain
name. IP config is EXACTLY the same as the other server except for the
IP address.

Have set these servers up several times while playing/learning, but
have not had this problem before.