Hello. I noticed a strange behavior of proxy_arp when turned on in a subnet with unconfigured windows hosts. Here is the tcpdump log: # tcpdump -enpi eth0 arp 19:02:58.987045 4c:00:10:00:49:35 > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 60: arp who-has 169.254.18.11 tell 169.254.18.11 19:02:59.579282 00:0e:0c:a1:d6:31 > 4c:00:10:00:49:35, ethertype ARP (0x0806), length 42: arp reply 169.254.18.11 is-at 00:0e:0c:a1:d6:31 19:02:59.579566 00:0e:0c:a1:d6:31 > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 60: arp who-has 169.254.18.11 tell 169.254.18.11 19:03:00.123318 00:0e:0c:a1:d6:31 > 00:0e:0c:a1:d6:31, ethertype ARP (0x0806), length 42: arp reply 169.254.18.11 is-at 00:0e:0c:a1:d6:31 4c:00:10:00:49:35 - NIC of the Windows host 00:0e:0c:a1:d6:31 - eth of the linux host (proxy_arp = on) - : 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
