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Date:      Wed, 16 Feb 2011 11:01:53 -0500
From:      "kevin" <k@kevinkevin.com>
To:        "'Damien Fleuriot'" <ml@my.gd>, <freebsd-pf@freebsd.org>
Subject:   RE: Questions about PF + Multiple gateways + CARP on a public ip network
Message-ID:  <00cf01cbcdf2$d54f6100$7fee2300$@com>
In-Reply-To: <4D5BD4E6.90605@my.gd>
References:  <00a401cbcd3d$fe313d10$fa93b730$@com> <4D5BD4E6.90605@my.gd>

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>If you have only 1 upstream interconnection, this won't be a problem for
>you.

These boxes are in a collocation facility, in a data center. There are
multiple upstream providers, but I am using the data center's default
gateways for each allocated subnet. So I imagine the routing to the multiple
upstreams would be done after being routed via their gateway.


> Wait do you want to route or to NAT ?

I want to route. I don't want to nat. My mistake for misleading. Each device
behind this firewall is a dedicated server in a data center. They need to
transparently maintain connectivity to the outside world and from the
outside world.


> I think it all depends on whether you have multiple upstream connections
> or not, as I pointed out above.

I suppose I would have to confirm this with my data center's networking
department. I would imagine that it would be standard practice for them to
handle the multiple upstreams themselves.

To give you a little background, I am currently utilizing two transparent
bridging firewalls at the moment. Unfortunately one of the firewalls will
completely lock up with no console messages if they both are on. The idea is
to employ carp + pf to maintain some sort of automated failover mechanism
instead of a cold standby.

At the same time I don't want to change the architecture of my internal
network more than perhaps modifying the default gateways configured on each
device. 


Your help is appreciated,

Kevin





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