I just set-up a simple router under FreeBSD 4.9, everything works fine but if I check my logs I have a lot of line similar to this: Nov 19 22:00:20 Blah /kernel: arp: 192.168.1.1 is on lnc0 but got reply from [some mac address] on lnc1 The IP 192.168.1.1 Is a gateway What is the cause of this message ? Regards, Benjamin Lauzière