: > 02/21-16:27:07.393165 ARP who-has 10.0.0.25 tell 10.10.10.11 : Clearly if you are sending on a LAN then you will need to : make a fake ARP cache entry for your non-existent node. : see: man arp I agree with David....see also: http://linux-ip.net/html/tools-arp.html http://linux-ip.net/html/tools-ip-neighbor.html http://linux-ip.net/html/tools-ip-neighbor.html#ex-tools-ip-neighbor-add If you enter an address into the ARP cache (neighbor table) for 10.10.10.11 on 10.0.0.25, the linux box will know where to send the frames. Then, you can flood your network with UDP packets to an IP that isn't on the wire. This will allow you to exercise your traffic control. -Martin -- Martin A. Brown --- SecurePipe, Inc. --- mabrown@xxxxxxxxxxxxxx