Em 12-12-2013 17:42, Ted Bullock escreveu: > CARP(ish) Question: > > I have a /30 transit network from my ISP, where there obviously isn't > room for both routers in the carp setup to have a dedicated IP address > in addition to the IP assigned to the carp interface. > > If it matters, I've assigned both routers private addresses in my > network and can talk to them just fine on the local network. > > Anyway, I've noticed that the clock on the backup router is getting > slowly out of sync. I figure it cannot initiate network sessions to > the public ntp pool since it doesn't have an IP and a valid route to > the internet while it's acting as the backup. > > I'd prefer to not run yet another service locally if at all possible > though. > > I'm wondering what other folks do in this situation. > > You could use some ifstated plus scripts tricks to update your routing tables on the primary and on the backup, according to the situation. This way your backup could use your primary to connect with the internet and when the primary fails, you update your route on the backup to use your isp's route. Also you could use a dedicated ntp server inside your private network. There are some other things, but these are the ones that I remember from the top of my head.
Cheers, -- Giancarlo Razzolini GPG: 4096R/77B981BC