This is correct. If all public Ips are in the same subnet you should  prefer 
natting if you want to have a failover setup. Brdging won't work with having a 
failover cluster (besides that it's missing some other features like 
trafficshaping too). Theoretically 2 bidged pfSenses in parallel config should 
be no problem due to the spanningtreeprotocol support but I have not tested 
this yet. One of the systems should start blocking (you should be able to see 
this at status/interfaces).

Holger

-----Ursprüngliche Nachricht-----
Von: Eugen Leitl [mailto:[EMAIL PROTECTED] 
Gesendet: Donnerstag, 15. März 2007 08:55
An: [email protected]
Betreff: Re: [pfSense-discussion] multiple WAN address on one nic

On Wed, Mar 14, 2007 at 11:53:00PM +0100, Holger Bauer wrote:
> It is possible with pfSense but depends on the public Ips/subnets. If they 
> are all in the same subnet you either have to use a bridging setup or you 
> have to use virtual Ips at the pfSense and then nat them to your internal 
> hosts (which then have a prvate IP).

With a carp+pfsync cluster the latter is the only option, correct?

It troubles me at the gut level. Both because I need to switch the addresses of 
the hosts (which is impossible to recover from
remotely) and because one has learned to associate NAT with a kludge.
But in this case there is one virtual IP (of the public subnet) mapped 1:1 to 
the private internal IP (from 10.0.0.0/24 or 192.168.1.0/24 or somesuch). Does 
this have any unanticipated side effects?

With a filtering bridge I can switch over to a second system manually, and 
restore from the backup configuration. This is even less acceptable.

Is above more or less correct?
 
--
Eugen* Leitl <a href="http://leitl.org";>leitl</a> http://leitl.org 
______________________________________________________________
ICBM: 48.07100, 11.36820            http://www.ativel.com
8B29F6BE: 099D 78BA 2FD3 B014 B08A  7779 75B0 2443 8B29 F6BE

Reply via email to