On Wed, 27 Apr 2005, Marc Shapiro wrote: > (running Sarge/Testing). The two boxes are connected > by a 4 port switch. For the past few days I have been > unable to communicate between the two boxes. > > Neither machine can ping the other (100% packet loss). > Traceroute is also unable to find a path from either > machine to the other. Ssh fails with an error saying > 'no route to host.' This last error makes me feel > that something has been messed up with my kernel > routing tables, but they look OK to me and I have not > been able to correct the problem by making changes > there. 1.) Does your switch work well? Connect the boxes directly with a cross-link cable (1-3, 2-6). Do they work? 2.) Try to connect an another box to the switch and ping the two linux boxes. 3.) Do you have any filtering? (check iptables) Regards, Levente - : send the line "unsubscribe linux-net" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html