Hello, I had a mystery with my Linux running 2.4.2 kernel with ARP packet response. I have two interfaces that share same subnet, I call eth0 194.29.192.37 and eth1 194.29.192.38. I have forwarding turned on, proxy arp is not neighter are redirects. When I flush local neighbor table in other machine I use to observe the response and ping the router I get response like: 23:38:25.278848 > arp who-has 194.29.192.38 tell 194.29.192.10 (0:50:da:82:ae:9f) 23:38:25.278988 < arp reply 194.29.192.38 is-at 0:1:2:dc:d2:64 (0:50:da:82:ae:9f) 23:38:25.279009 < arp reply 194.29.192.38 is-at 0:1:2:dc:d2:6c (0:50:da:82:ae:9f) The second one is the valid one, but both interfaces seem to answer to the broadcasted packet with their own ARP addresses. This came up when I wondered why I get responses to wrong interface with Zebra. - Sampsa Ranta sampsa@netsonic.fi - : send the line "unsubscribe linux-net" in the body of a message to majordomo@vger.kernel.org