[Bridge] Linux Firewall with STP

[Claudio Prono <claudio.prono@atpss.net>]

Hello all,

I don't have a big experience with stp protocol, so i need some help on
configuration.

My scenario is the following:

I have one (ore more) system behind two redundat switches. The system
have 2 ethernet cards, so it is connected with the two switches, and the
switches are connected each other. connected to the two switches there
is a linux firewall, with 3 ethernet cards. Two are connected to the
switches, the last one is connected to the internet router.

There is my questions:

- The system behind the two redundant switches must have 2 IP Address?
One for each card?
- The Firewall must have 2 "Internal" IP addresses? And if yes, how i
can NAT this to an external address?

Anyone have experence in scenarios like this and can help me for a
correct configuration?

Any type of help is well accepted.

Thanks,

Claudio Prono.

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Claudio Prono                         OPST
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