Linux Ethernet Bridging - Apr 2007 - [Bridge] Re: Policy match with a bridge

Tom Eastep wrote:
> | Have you applied the ipsec+netfilter patches ? Without them, packets 
> are
> | only seen encrypted in the OUTPUT chain.
> |
> Yes -- the ipsec+netfilter patches are applied. Here is the same test
> with the bridge removed and the local ip address transfered to one of
> the network cards: 
The problem is ipv4_sabotage_out in the briding code. It prevents the
packet from hitting the LOCAL_OUT hook while it is still unencrypted.
When it hits the bridging code and its LOCAL_OUT hook it's too late.
Not sure how to handle it yet.

Regards
Patrick

On Monday 16 August 2004 03:31, Patrick McHardy wrote:
> The problem is ipv4_sabotage_out in the briding code. It prevents the
> packet from hitting the LOCAL_OUT hook while it is still unencrypted.
> When it hits the bridging code and its LOCAL_OUT hook it's too late.
> Not sure how to handle it yet.
I'll have a look at that after I'm finished with the IPv6 bridge
firewalling
stuff.

cheers,
Bart

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Patrick McHardy wrote:
| Tom Eastep wrote:
|
|> | Have you applied the ipsec+netfilter patches ? Without them, packets
|> are
|> | only seen encrypted in the OUTPUT chain.
|> |
|> Yes -- the ipsec+netfilter patches are applied. Here is the same test
|> with the bridge removed and the local ip address transfered to one of
|> the network cards:
|
|
| The problem is ipv4_sabotage_out in the briding code. It prevents the
| packet from hitting the LOCAL_OUT hook while it is still unencrypted.
| When it hits the bridging code and its LOCAL_OUT hook it's too late.
| Not sure how to handle it yet.
|

Thanks for the update.

- -Tom
- --
Tom Eastep    \ Nothing is foolproof to a sufficiently talented fool
Shoreline,     \ http://shorewall.net
Washington USA  \ teastep@shorewall.net

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