Jason Martin wrote: > > In my case, I had a cisco router that absolutely refused to send packets > to the 'new' MAC address until I setup ip (then shortly removed) the ip > aliases for those IP's. I also discovered that waiting a long time also > worked. Cisco routers have a longer timeout for the arp cache, and waiting has usually something to do with that, try, from priviledged exec : r#sh arp r#clear arp-cache