On Thu, Feb 17, 2011 at 05:37:34PM +0100, Henning Brauer wrote: > your way to configure aliases is correct, however, the masks are not. > you are screwing up routing. you want an all-ones netmask on each and > every IP address except one per subnet. alas you want 255.255.255.255 > on the carp if's IPs.
IIRC, aliases in hostname.if add an explicit route to lo0. This means should something on one of the backup carp nodes attempt to connect to one of the shared IP addresses on the master carp node, they will follow the lo0 route on the backup and not connect to the master node. IMHO, it would be better to use a new carp device for each alias. The routes will be created and destroyed properly with the status change of each carp device.
