Running RB1100AHx2 6.40.x
When I set core router to ping a non existent IP on our inner lan network, it sends the ping!
Shouldn’t it issue the arp request, fail to get an answer and then not send it?
IP ARP shows mac of 00:00:00:00:00:00 for that address which is correct.
Packet sniffer picks up the outgoing packet on the lan bridge1, but of course no return packet.
But worse there are other machines on our network that pick up the errant packets with tcpdump, although not all machines do that. No hubs, everyone is switched.
Am I just over tired, over stupid, or what?
Further, packets from the outside world to non existent IP’s on our network, are also being sent on through the
bridge1 to our inner lan, and are also picked up by other machines they are not destined to.
And why are the dell switches passing this stuff along?
Thanks Homer