[...] erich> How transparent does this box have to be? Like a bridge erich> (i.e. like your switch) or like a router? like a router is erich> easy, but you need to change settings on your existing erich> router (which can be hard if you do not have access to erich> it...) Hmmm. You could play proxy-arp tricks to eliminate this problem, I think. Am I missing something? cheers, BM