James Knott wrote:
Ken Schneider wrote:
Still every computer needs a "default" route if it on a network and on linux every machine has two interfaces (if it has a network card or modem), in your case eth0 and lo (the loopback interface). Since the machine can only ping itself it is probably using the lo interface. Just type route -n (as root) for the routing table. The most likely reason that computer "A" can only ping itself but answer ping requests is that the requests will return on the same interface the request was received on but doesn't know where to send the initial request. This is just my guess.
One thing about IPv6, is that it's not supposed to be necessary to configure routing. It's all supposed to happen automagically. Route -n only shows IPv4 routing.
Further on this. The problem appears to be happening between 9.2 & 9.1. I just tried between 2 9.2 systems, and ping works. Now to find out how to get applications to work (ssh, browser etc.) over IPv6. tnx