Fw: conntrack and SIP

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Hello

I posted this a few days ago and got no answers. Can anyone point me some
directions?

Regards

Ethy

Begin forwarded message:

Date: Thu, 3 May 2007 15:45:20 -0300
From: "Ethy H. Brito" <ethy.brito@xxxxxxxxxxxx>
To: netfilter@xxxxxxxxxxxxxxxxxxx
Subject: conntrack and SIP



Hello

I have these two SIP clients behind two linux NAT. they both connect to
the same server.

On client 1 I have:

udp      17 174 src=192.168.0.201 dst=X.X.X.X sport=5060 dport=5060
src=X.X.X.X dst=Y.Y.Y.Y sport=5060 dport=5060 [ASSURED] use=1 

Note that the sport and dport were not changed from in and out.

But on client 2:

udp      17 171 src=10.172.40.118 dst=X.X.X.X sport=5060 dport=5060
src=X.X.X.X dst=Z.Z.Z.Z sport=5060 dport=1024 [ASSURED] use=1 

What could cause the change in dport?? I have no SNAT or DNAT rules in any
of them.

Is that a way to copy the client 1 behavior to client 2?

Client 1 is iptables version 1.3.3 and kernel 2.4.33

Client 2 is iptables version 1.3.5 and kernel 2.4.33.3

-- 

Ethy H. Brito         /"\
InterNexo Ltda.       \ /  CAMPANHA DA FITA ASCII - CONTRA MAIL HTML
+55 (12) 3797-6860     X   ASCII RIBBON CAMPAIGN - AGAINST HTML MAIL
S.J.Campos - Brasil   / \ 



-- 

Ethy H. Brito         /"\
InterNexo Ltda.       \ /  CAMPANHA DA FITA ASCII - CONTRA MAIL HTML
+55 (12) 3797-6860     X   ASCII RIBBON CAMPAIGN - AGAINST HTML MAIL
S.J.Campos - Brasil   / \ 


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