On Mon, Jul 03, 2006 at 04:58:09PM +0200, Sebastian Reitenbach wrote: > I can setup a tunnel between both hosts, and route the mulitcast > packets through the tunnel and then have the IP address shared between > the two hosts?
No. CARP does not accept packets that have crossed a router, to prevent external spoofing of carp packets. Get your colo to change their switch/router config to put your boxes on the same ethernet segment, put both of the boxes on a switch that you manage that connects to one of your colo's switch port, or change colo providers.
