From: Patrick McHardy <kaber@trash.net>
To: Eric Dumazet <eric.dumazet@gmail.com>
Cc: Kevin Cernekee <cernekee@gmail.com>,
"David S. Miller" <davem@davemloft.net>,
Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>,
"Pekka Savola (ipv6)" <pekkas@netcore.fi>,
James Morris <jmorris@namei.org>,
Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org>,
netfilter-devel@vger.kernel.org, netfilter@vger.kernel.org,
coreteam@netfilter.org, linux-kernel@vger.kernel.org,
netdev@vger.kernel.org
Subject: Re: [PATCH/RFC] netfilter: nf_conntrack_sip: Handle quirky Cisco phones
Date: Mon, 15 Nov 2010 10:51:50 +0100 [thread overview]
Message-ID: <4CE102B6.9020707@trash.net> (raw)
In-Reply-To: <1289764664.2743.110.camel@edumazet-laptop>
On 14.11.2010 20:57, Eric Dumazet wrote:
> Le dimanche 14 novembre 2010 à 10:33 -0800, Kevin Cernekee a écrit :
>> On Sun, Nov 14, 2010 at 12:59 AM, Eric Dumazet <eric.dumazet@gmail.com> wrote:
>>> I would like to get an exact SIP exchange to make sure their is not
>>> another way to handle this without adding a "Cisco" string somewhere...
>>>
>>> Please provide a pcap or tcpdump -A
>>
>> Existing nf_nat_sip: phone sends unauthenticated REGISTER requests
>> over and over again, because it is not seeing the replies sent back to
>> port 50070:
>>
>> 10:05:53.496479 IP 192.168.2.28.50070 > 67.215.241.250.5060: SIP, length: 723
>> E`...[..@.r.....C...........REGISTER sip:losangeles.voip.ms SIP/2.0
>> Via: SIP/2.0/
>>
>
> Hmm, partial tcpdump... you should use" tcpdump -s 1000 -A"
>
> We miss the
>
> Via: SIP/2.0/UDP 192.168.2.28:5060;branch=xxxxxxxx
>
>
> Maybe a fix would be to use this "5060" port, instead of hardcoding it
> like you did ?
I agree, using the Via header to route the response makes more sense.
prev parent reply other threads:[~2010-11-15 9:51 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-11-14 8:32 [PATCH/RFC] netfilter: nf_conntrack_sip: Handle quirky Cisco phones Kevin Cernekee
2010-11-14 8:32 ` Kevin Cernekee
2010-11-14 8:32 ` Kevin Cernekee
2010-11-14 8:59 ` Eric Dumazet
2010-11-14 18:33 ` Kevin Cernekee
2010-11-14 19:57 ` Eric Dumazet
2010-11-15 3:01 ` Kevin Cernekee
2010-11-15 10:15 ` Patrick McHardy
2010-11-15 16:46 ` Kevin Cernekee
2010-11-15 16:46 ` Kevin Cernekee
2010-11-15 16:58 ` Patrick McHardy
2010-11-15 22:09 ` Kevin Cernekee
2010-11-15 9:51 ` Patrick McHardy [this message]
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