linux-kernel - Re: Problem on SCTP

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Message-ID: <20170106123711.GA15139@hmsreliant.think-freely.org>
Date:   Fri, 6 Jan 2017 07:37:11 -0500
From:   Neil Horman <nhorman@...driver.com>
To:     Sun Paul <paulrbk@...il.com>
Cc:     linux-sctp@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: Problem on SCTP

On Fri, Jan 06, 2017 at 05:34:47PM +0800, Sun Paul wrote:
> Hi
> 
> I am setting up a lab where the SCTP traffics from  client is passing
> through a linux router before reaching to the SCTP server running
> LKSCTP.
> 
> The linux router did not change the source address of the client, so
> when it arrived to the SCTP server, the source address is the oriingal
> one.
> 
> however, I found that there is no response from the SCTP server, any
> idea on this?
> 
> if I connect the client directly to the SCTP server, it do not have any issue.
> 
> help pls
> 
> rbk
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Start with a tcpdump on the client and the server and attempt a connection,
check to see if the INIT and INIT-ACK chunks are arriving appropriately.

Neil