On Fri, May 21, 2010 at 11:38 AM, Ryan <[email protected]> wrote: > First, this is the best routing product I have ever used. Ihad a box that > was up and running for over two years!!! It only rebooted because of a > faiure in my ups. I went ahead and updated to 1.2.3 seings as the system up > time had reset anyway. Thanks for the excellent work!!! > > I have a Question. > > I use Mlti-Wan with 1 Cable modem, 1 DSL line and 1 T1 line. I setup > Failover and have been very happy thus far. I am also using DNS forwarder. > On each computer, PFsense assigns its own address as the DNS server. Then PF > serves up the dns. My question it, what link does PF use to get its dns > information. I would assume the wan link as this is the only link that it > uses for package information also. If it is just the wan link and I lose > that connection, will the fail-over be of any real use? It seems like > without being able to update the dns, individual user will only be able to > reach those sites in the cached dns table. Am i correct in this? Thank for > the help. >
For such multi-WAN setups, I would recommend hard coding your DNS servers under System > General Setup and not allowing them to be overridden. Then add a static route for one of them so it always goes out your second WAN. Make sure the server you use will answer on the WAN for which it's being used, use Google's public DNS or OpenDNS and you don't have to worry about that. --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected] Commercial support available - https://portal.pfsense.org
