> > No, I think he's asking why the router with address 10.0.0.5 responds > to pings that have a destination IP of 10.0.0.4. The echo request is > targeted at a network address, not at the router.
Yes, that is the basis for my question. I suppose to clarify further, a /30 has four addresses: * network portion * link ip 1 * link ip 2 * broadcast Pings to the device originating on the ingress side but destined to the network portion of the egress side are responded to back out the ingress side with the link ip of the ingress side. It appears that the router listens to the 'network address' portion of a subnet. Is this good, bad, or ugly? Should-it/can-it be turned off? > > I've also observed this behavior (more than ICMP though - I have a > router responding to SNMP and being discovered by our configuration > management team, on the network address of one of its interfaces) and > would like to know more about why... > Ah, good, someone else has the same experience. -- Scanned for viruses and dangerous content at http://www.oneunified.net and is believed to be clean. _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
