In the good call, what happens between packets 40 and 44? You left that part out. Hard to analyze a trace with only some of the packets….
From:
freeswitch-users-bounces@lists.freeswitch.org
[mailto:freeswitch-users-bounces@lists.freeswitch.org] On Behalf Of Dan
Sent: Thursday, July 22, 2010 9:00 AM
To: FreeSWITCH Users Help
Subject: Re: [Freeswitch-users] calls ending with MEDIA_TIMEOUT
I appologize if I'm not making
sense or barking up the wrong tree, I'm hoping that this will be obvious to
someone else.
I'm comparing a call that succeeds and one that times out.
With both calls I see that after the initial invite from the far end
device, freeswitch sends a 180 and attempts to reach the device's
advertised RTP port before sending a 200 OK.
With the call that times-out its interesting that it sends these two packets (
src port 27176 to dest port 27176) but then send 2 more
with the same source port but to a different destination port that I don't see
negotiated anywhere (src port 27176 to dest port 19488). The call that
succeedes (see below below) does not have this behavior.
The boxes have full visibility to each other, there is no nat-ing or firewalls
between the two internal networks (just a router). Any thoughts?
Media timeout call
No. Time Source
Source Port
Destination Dest
Port Protocol Info
1 0.000000
192.168.21.4
56397
192.168.24.22 onscreen
SIP/SDP Request: INVITE sip:3103568788@192.168.24.22:5080, with session
description
2 0.000367
192.168.24.22
onscreen
192.168.21.4
sip SIP
Status: 100 Trying
3 0.000369
192.168.24.22
onscreen
192.168.21.4
sip SIP
Status: 100 Trying
4 0.007171
192.168.24.22
27176
192.168.24.22
27176 UDP Source port:
27176 Destination port: 27176
5 0.017542
192.168.24.22
27176
192.168.24.22
27176 UDP Source port:
27176 Destination port: 27176
6 0.017613
192.168.24.22
27176
192.168.21.4
19488 UDP Source port:
27176 Destination port: 19488
7 0.017616
192.168.24.22
27176
192.168.21.4
19488 UDP Source port:
27176 Destination port: 19488
8 0.017809
192.168.24.22
onscreen
192.168.21.4
sip SIP/SDP Status: 200 OK, with
session description
9 0.017810
192.168.24.22
onscreen
192.168.21.4
sip SIP/SDP Status: 200 OK, with
session description
10 0.020167
192.168.21.4
56397
192.168.24.22 onscreen
SIP Request: ACK
sip:3103568788@192.168.24.22:5080;transport=udp
11 0.186076
192.168.21.4
16752
192.168.24.22 27176
RTP PT=ITU-T G.711 PCMU, SSRC=0x21B51504,
Seq=10837, Time=1575317876, Mark
12 0.186121
192.168.24.22
27176
192.168.21.4
16752 RTP PT=ITU-T G.711
PCMU, SSRC=0x33CF6C8, Seq=5202, Time=240, Mark
13 0.186126
192.168.24.22
27176
192.168.21.4
16752 RTP PT=ITU-T G.711
PCMU, SSRC=0x33CF6C8, Seq=5202, Time=240, Mark
14 0.216085
192.168.21.4
16752
192.168.24.22
27176 RTP PT=ITU-T G.711
PCMU, SSRC=0x21B51504, Seq=10838, Time=1575318116
15 0.246105
192.168.21.4
16752
192.168.24.22
27176 RTP PT=ITU-T G.711
PCMU, SSRC=0x21B51504, Seq=10839, Time=1575318356
16 0.276137
192.168.21.4
16752
192.168.24.22
27176 RTP PT=ITU-T G.711
PCMU, SSRC=0x21B51504, Seq=10840, Time=1575318596
17 0.306164
192.168.21.4
16752
192.168.24.22
27176 RTP PT=ITU-T G.711
PCMU, SSRC=0x21B51504, Seq=10841, Time=1575318836
18 0.336178
192.168.21.4
16752
192.168.24.22
27176 RTP PT=ITU-T G.711
PCMU, SSRC=0x21B51504, Seq=10842, Time=1575319076
19 0.366208
192.168.21.4
16752 192.168.24.22
27176 RTP PT=ITU-T G.711
PCMU, SSRC=0x21B51504, Seq=10843, Time=1575319316
20 0.396232
192.168.21.4
16752
192.168.24.22
27176 RTP PT=ITU-T G.711
PCMU, SSRC=0x21B51504, Seq=10844, Time=1575319556
21 0.426256
192.168.21.4
16752
192.168.24.22
27176 RTP PT=ITU-T G.711
PCMU, SSRC=0x21B51504, Seq=10845, Time=1575319796
22 0.456276
192.168.21.4
16752
192.168.24.22
27176 RTP PT=ITU-T G.711
PCMU, SSRC=0x21B51504, Seq=10846, Time=1575320036
23 0.486311
192.168.21.4
16752
192.168.24.22
27176 RTP PT=ITU-T G.711
PCMU, SSRC=0x21B51504, Seq=10847, Time=1575320276
.....many more of 192.168.21.4 to
192.168.24.22
57 1.477101
192.168.24.22
16752
192.168.21.4
27176 ICMP Destination
unreachable (Port unreachable)
58 1.477101
192.168.24.22
16752
192.168.21.4
27176 ICMP Destination
unreachable (Port unreachable)
.... RTP pattern repeats
Good Call
No. Time
Source
Src Port
Destination DesT
Port Protocol Info
7 3.170800
192.168.21.4
57394
192.168.24.22 onscreen
SIP/SDP Request: INVITE sip:3103568788@192.168.24.22:5080, with session
description
8 3.171165
192.168.24.22 onscreen
192.168.21.4
sip SIP
Status: 100 Trying
9 3.171171
192.168.24.22 onscreen
192.168.21.4
sip SIP
Status: 100 Trying
36 3.185636
192.168.24.22
19472
192.168.24.22
19472 UDP Source port:
19472 Destination port: 19472
40 3.194949
192.168.24.22
19472 192.168.24.22
19472 UDP Source port:
19472 Destination port: 19472
44 3.195565
192.168.24.22 onscreen
192.168.21.4
sip SIP/SDP Status: 200 OK, with
session description
45 3.195568
192.168.24.22 onscreen
192.168.21.4
sip SIP/SDP Status: 200 OK, with
session description
46 3.197975
192.168.21.4
57394
192.168.24.22 onscreen
SIP Request: ACK
sip:3103568788@192.168.24.22:5080;transport=udp
140 3.320438
192.168.24.22
19472
192.168.21.4
17148 RTP PT=ITU-T G.711
PCMU, SSRC=0x287D4E7, Seq=11773, Time=240, Mark
141 3.320441
192.168.24.22
19472
192.168.21.4
17148 RTP PT=ITU-T G.711
PCMU, SSRC=0x287D4E7, Seq=11773, Time=240, Mark
192 3.450347
192.168.21.4
17148
192.168.24.22
19472 RTP PT=ITU-T G.711
PCMU, SSRC=0x6B1504, Seq=36119, Time=96783955, Mark
199 3.480344
192.168.21.4
17148 192.168.24.22
19472 RTP PT=ITU-T G.711
PCMU, SSRC=0x6B1504, Seq=36120, Time=96784195
200 3.480393
192.168.24.22
19472
192.168.21.4
17148 RTP PT=ITU-T G.711
PCMU, SSRC=0x287D4E7, Seq=11774, Time=480
201 3.480395
192.168.24.22
19472
192.168.21.4
17148 RTP PT=ITU-T G.711
PCMU, SSRC=0x287D4E7, Seq=11774, Time=480
213 3.510382
192.168.21.4
17148
192.168.24.22
19472 RTP PT=ITU-T G.711
PCMU, SSRC=0x6B1504, Seq=36121, Time=96784435
..... RTP pattern repeats for duration of call
From: "Dan" <freeswitch-users@digitaldan.com>
To: "FreeSWITCH Users Help"
<freeswitch-users@lists.freeswitch.org>
Sent: Wednesday, July 21, 2010 9:14:01 AM
Subject: Re: [Freeswitch-users] calls ending with MEDIA_TIMEOUT
Gotcha, if I sort wireshark by
source freeswitch sends 2 RTP packets and then a handful if ICMP errors, this
pattern repeats for the entire call (2 voice packets and 5+ icmp
errors).
192.168.24.22 = freeswitch
192.168.21.4 = endpoint
ID
Time
Source
Src Port Destination Dest Port
12 0.186121 192.168.24.22
27176 192.168.21.4 16752
RTP PT=ITU-T G.711 PCMU, SSRC=0x33CF6C8, Seq=5202, Time=240,
Mark
13 0.186126 192.168.24.22
27176 192.168.21.4 16752
RTP PT=ITU-T G.711 PCMU, SSRC=0x33CF6C8, Seq=5202, Time=240,
Mark
57 1.477101 192.168.24.22
16752 192.168.21.4 27176
ICMP Destination unreachable (Port unreachable)
92 2.467948 192.168.24.22
16752 192.168.21.4 27176
ICMP Destination unreachable (Port unreachable)
93 2.467949 192.168.24.22
16752 192.168.21.4 27176
ICMP Destination unreachable (Port unreachable)
194 5.465388
192.168.24.22 16752
192.168.21.4 27176 ICMP
Destination unreachable (Port unreachable)
The ICMP erros have the ports reversed, is this normal ?
Thanks,
Dan-
From: "Brian West" <brian@freeswitch.org>
To: "FreeSWITCH Users Help"
<freeswitch-users@lists.freeswitch.org>
Sent: Wednesday, July 21, 2010 8:30:40 AM
Subject: Re: [Freeswitch-users] calls ending with MEDIA_TIMEOUT
NO that would mean that it was sending RTP to that IP and the firewall returned
and ICMP port unreachable.
/b
On Jul 21, 2010, at 8:43 AM, Dan wrote:
> I was able to pull the box out yesterday and try some load testing under
tcpdump. It looks like under load freeswitch was trying to ping the far
end RTP port which was failing:
>
> 57 1.477101 192.168.24.22
192.168.21.4 ICMP Destination unreachable (Port
unreachable)
>
> I'm guessing this is part of auto nat detection? Is this a tunable
option? I don't need stun/nat functionality at this point so I'm
running freeswitch with the -nonat flag right now to see if its playing a
part here.
>
> I have the tcpdump of a call if anyone is interested.
>
> Thanks
> Dan-
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