"Chad Morgan" <chad@ns.enhancetheweb.com> writes: > eth0, IP Address A - can ping from my computer and from other computers > eth0:0, IP Address B - can ping ONLY from my computer but not from = > others. It is listed in ifconfig Are they in the same subnet? If you assign IP address A to eth0 and B to eth0:0, which one works then? Are you using a packet filter?