Messages in this thread | | | Date | Mon, 15 Nov 2010 10:51:50 +0100 | From | Patrick McHardy <> | Subject | Re: [PATCH/RFC] netfilter: nf_conntrack_sip: Handle quirky Cisco phones |
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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.
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