Configuration with STP

Marc <[email protected]> Mon, 25 Jun 2007 16:05:01 +1000
Newsgroups gmane.linux.network.bridge.ebtables.user
Message-ID <[email protected]>
Hi,

I have been trying a number of things for the past couple of days without
success and was wondering if there is someone who may be able to help me.

First my testing scenario:
"My pc" --- switch === bridge1 & bridge2 === switch --- "network"

Everything is working fine, including STP. The idea is to set the policy for
ebtables to DROP everything, except for what should be allowed through. The
point that I am having difficulty with is the STP traffic. I basically want
to allow all BPDUs to flow between the two bridges in order for STP to
remain working.

The latest example of how I am trying to achieve is, looks like this:

ebtables -A INPUT -s BGA -j ACCEPT
ebtables -A FORWARD -s BGA -j ACCEPT
ebtables -A OUTPUT -s BGA -j ACCEPT

This is configured on both bridges. Once enabled, I find that the bridges no
longer see eachother and both start operating as independent bridges.

What would be the correct way of configuring this?

Regards, /|/|arc.

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