23 Sep
2005
23 Sep
'05
11:23 p.m.
Hi everybody, I have a "one way audio" problem. My enviroment is:
xx.xx.63.75/27 = SER
xx.xx.63.68/27 = Natbox (linux iptables masquerade)
xx.xx.70.2/25 = STUN server
xx.xx.63.78/27 = PAP1 linksys AOR 2000
10.1.1.233/24 = PAP2 linksys AOR 2001 (behind NATbox with stun enable)
I have no audio from PAP1 to PAP2 when the call is made from PAP1 to PAP2, but when the
call is made from PAP2 to PAP1 it works correctly.
I see on the natbox that the RTP packet is droped with unreachable cause (icmp messages).
This is the trace (ngrep) for the call from PAP1 to PAP2 on external interface of the
natbox, where I can see STUN packets and the number udp port that the PAP willl be use
(16444 to 16447).
The problem is natbox use other port (1173). I don't know if this problem is on natbox
or stun server or PAP.
Can you helpme?
Thanks!!
U xx.xx.63.75:5060 -> xx.xx.63.68:5060
INVITE sip:2001@xx.xx.63.68:5060 SIP/2.0..Record-Route:
<sip:xx.xx.63.75;ftag=d1ccd3db9e31eb1fo0;lr=on>..Via: SIP/2.0/UDP
xx.xx.63.75;branch=z9hG4bK52fb.41985863.0..Via: SIP/2.0/UDP
xx.xx.63.78:5060;branch=z9hG4bK-57b1577f..From: 2000 <sip:5
890000@xx.xx.63.75>;tag=d1ccd3db9e31eb1fo0..To:
<sip:2001@xx.xx.63.75>..Call-ID: d6e2df8b-5193d32f@xx.xx.63.78..CSeq: 101
INVITE..Max-Forwards: 16..Contact: 2000 <sip:2000@xx.xx.63.78:5060>..Expires:
240..User-Agent: Linksys/PAP2-2.0.10(L
Sc)..Content-Length: 420..Allow: ACK, BYE, CANCEL, INFO, INVITE, NOTIFY, OPTIONS,
REFER..Supported: x-sipura..Content-Type: app
lication/sdp....v=0..o=- 29375 29375 IN IP4 xx.xx.63.78..s=-..c=IN IP4 xx.xx.63.78..t=0
0..m=audio 16472 RTP/AVP 18 0 2 4 8 9
6 97 98 100 101..a=rtpmap:18 G729a/8000..a=rtpmap:0 PCMU/8000..a=rtpmap:2
G726-32/8000..a=rtpmap:4 G723/8000..a=rtpmap:8 PCMA/8
000..a=rtpmap:96 G726-40/8000..a=rtpmap:97 G726-24/8000..a=rtpmap:98
G726-16/8000..a=rtpmap:100 NSE/8000..a=rtpmap:101 telephon
e-event/8000..a=fmtp:101 0-15..a=ptime:30..a=sendrecv..
#
U xx.xx.63.68:5060 -> xx.xx.63.75:5060
SIP/2.0 100 Trying..To: <sip:2001@xx.xx.63.75>..From: 2000
<sip:2000@xx.xx.63.75>;tag=d1ccd3db9e31eb1fo0..Call-ID
: d6e2df8b-5193d32f@xx.xx.63.78..CSeq: 101 INVITE..Via: SIP/2.0/UDP
xx.xx.63.75;branch=z9hG4bK52fb.41985863.0..Via: SIP/2.0/U
DP xx.xx.63.78:5060;branch=z9hG4bK-57b1577f..Record-Route:
<sip:xx.xx.63.75;ftag=d1ccd3db9e31eb1fo0;lr=on>..Server: Linksys/P
AP2-2.0.10(LSc)..Content-Length: 0....
#
U xx.xx.63.68:5060 -> xx.xx.70.2:3478
.....*f..*f..*f..*f.
#
U xx.xx.63.68:16444 -> xx.xx.70.2:3478
.....OB..OB..OB..OB.
#
U xx.xx.63.68:16445 -> xx.xx.70.2:3478
....................
#
U xx.xx.63.68:16446 -> xx.xx.70.2:3478
.......&...&...&...&
#
U xx.xx.63.68:16447 -> xx.xx.70.2:3478
....#...#...#...#...
#
U xx.xx.70.2:3478 -> xx.xx.63.68:16447
...$#...#...#...#.........@?.+?D.........+F..........+F.
#
U xx.xx.63.68:5060 -> xx.xx.70.2:3478
.....*f..*f..*f..*f.
#
U xx.xx.63.68:16444 -> xx.xx.70.2:3478
.....OB..OB..OB..OB.
#
U xx.xx.70.2:3478 -> xx.xx.63.68:5060
...$.*f..*f..*f..*f..........+?D.........+F..........+F.
#
U xx.xx.63.68:16445 -> xx.xx.70.2:3478
....................
#
U xx.xx.63.68:16446 -> xx.xx.70.2:3478
.......&...&...&...&
#
U xx.xx.70.2:3478 -> xx.xx.63.68:16444
...$.OB..OB..OB..OB.......@<.+?D.........+F..........+F.
#
U xx.xx.70.2:3478 -> xx.xx.63.68:16446
...$...&...&...&...&......@>.+?D.........+F..........+F.
#
U xx.xx.63.68:5060 -> xx.xx.63.75:5060
SIP/2.0 180 Ringing..To: <sip:2001@xx.xx.63.75>;tag=156298945b7d27i0..From: 2000
<sip:2000@xx.xx.63.75>;tag=d1ccd
3db9e31eb1fo0..Call-ID: d6e2df8b-5193d32f@xx.xx.63.78..CSeq: 101 INVITE..Via:
SIP/2.0/UDP xx.xx.63.75;branch=z9hG4bK52fb.4198
5863.0..Via: SIP/2.0/UDP xx.xx.63.78:5060;branch=z9hG4bK-57b1577f..Record-Route:
<sip:xx.xx.63.75;ftag=d1ccd3db9e31eb1fo0;lr=
on>..Server: Linksys/PAP2-2.0.10(LSc)..Content-Length: 0....
#
U xx.xx.70.2:3478 -> xx.xx.63.68:16444
...$.OB..OB..OB..OB.......@<.+?D.........+F..........+F.
#
U xx.xx.63.68:5060 -> xx.xx.63.75:5060
SIP/2.0 200 OK..To: <sip:2001@xx.xx.63.75>;tag=156298945b7d27i0..From: 2000
<sip:2000@xx.xx.63.75>;tag=d1ccd3db9e
31eb1fo0..Call-ID: d6e2df8b-5193d32f@xx.xx.63.78..CSeq: 101 INVITE..Via: SIP/2.0/UDP
xx.xx.63.75;branch=z9hG4bK52fb.41985863.
0..Via: SIP/2.0/UDP xx.xx.63.78:5060;branch=z9hG4bK-57b1577f..Record-Route:
<sip:xx.xx.63.75;ftag=d1ccd3db9e31eb1fo0;lr=on>..
Contact: 2001 <sip:2001@xx.xx.63.68:5060>..Server:
Linksys/PAP2-2.0.10(LSc)..Content-Length: 236..Allow: ACK, BYE, CANCE
L, INFO, INVITE, NOTIFY, OPTIONS, REFER..Supported: x-sipura..Content-Type:
application/sdp....v=0..o=- 659101 659101 IN IP4 20
0.43.63.68..s=-..c=IN IP4 xx.xx.63.68..t=0 0..m=audio 16444 RTP/AVP 18 100
101..a=rtpmap:18 G729a/8000..a=rtpmap:100 NSE/8000.
.a=rtpmap:101 telephone-event/8000..a=fmtp:101 0-15..a=ptime:30..a=sendrecv..
#
U xx.xx.63.75:5060 -> xx.xx.63.68:5060
ACK sip:2001@xx.xx.63.68:5060 SIP/2.0..Record-Route:
<sip:xx.xx.63.75;ftag=d1ccd3db9e31eb1fo0;lr=on>..Via: SIP/2.0/UDP 200
.43.63.75;branch=0..Via: SIP/2.0/UDP xx.xx.63.78:5060;branch=z9hG4bK-5a4c9c84..From:
2000 <sip:2000@xx.xx.63.75>;tag
=d1ccd3db9e31eb1fo0..To: <sip:2001@xx.xx.63.75>;tag=156298945b7d27i0..Call-ID:
d6e2df8b-5193d32f@xx.xx.63.78..CSeq: 101 AC
K..Max-Forwards: 16..Contact: 2000 <sip:2000@xx.xx.63.78:5060>..User-Agent:
Linksys/PAP2-2.0.10(LSc)..Content-Length:
0....
#
U xx.xx.63.78:16472 -> xx.xx.63.68:16444
..8...-..L....@.....tF.34..V.|B..n..a.k(.R
#
I xx.xx.63.68 -> xx.xx.63.78 3:3
....E..F.........+?N.+?D@X@<.2....8...-..L....@.....tF.34..V.|B..n..a.k(.R
#
U xx.xx.63.68:1173 -> xx.xx.63.78:16472
..!o..vy.F.!...|...&.T.BP..Z..n...:.3..d..
#
U xx.xx.63.78:16472 -> xx.xx.63.68:16444
..8......L... .s..._exR..Kc.....+.O<.RZ.O{
#
I xx.xx.63.68 -> xx.xx.63.78 3:3
....E..F.........+?N.+?D@X@<.2....8......L... .s..._exR..Kc.....+.O<.RZ.O{
#
U xx.xx.63.68:1173 -> xx.xx.63.78:16472
..!p..wi.F.!.'D.F...K....@C..e.Z.[~P...Et,
#
U xx.xx.63.78:16472 -> xx.xx.63.68:16444
..8.../..L......@H..._...,[.P...rU.A..P...
#
I xx.xx.63.68 -> xx.xx.63.78 3:3
....E..F.........+?N.+?D@X@<.2....8.../..L......@H..._...,[.P...rU.A..P...
#
U xx.xx.63.68:1173 -> xx.xx.63.78:16472
..!q..xY.F.!....Mf.....Fu.Q.....~.}....v..
#
U xx.xx.63.78:16472 -> xx.xx.63.68:16444
..8...0..L..\.~..h..+..|S.C.M..~6W}....6sR
#
I xx.xx.63.68 -> xx.xx.63.78 3:3
....E..F.........+?N.+?D@X@<.2....8...0..L..\.~..h..+..|S.C.M..~6W}....6sR
#
U xx.xx.63.68:1173 -> xx.xx.63.78:16472
..!r..yI.F.!x|..Eo..._.1...;..GRz....*.x.Z
#
U xx.xx.63.78:16472 -> xx.xx.63.68:16444
..8...1..L..x.....n."..6.v....S.D.......S.
#
I xx.xx.63.68 -> xx.xx.63.78 3:3
....E..F.........+?N.+?D@X@<.2.!..8...1..L..x.....n."..6.v....S.D.......S.
#
U xx.xx.63.68:1173 -> xx.xx.63.78:16472
..!s..z9.F.!0...ooPE..F. .5...E....v......
#
U xx.xx.63.78:16472 -> xx.xx.63.68:16444
..8...2..L..z....+.b..r?...r....|..$.x...^
#
I xx.xx.63.68 -> xx.xx.63.78 3:3
....E..F.........+?N.+?D@X@<.2....8...2..L..z....+.b..r?...r....|..$.x...^
#
U xx.xx.63.68:1173 -> xx.xx.63.78:16472
..!t..{).F.!.o...{..r..3....F.$.r.. V..by.
#
26 Sep
26 Sep
11:30 a.m.
Hello,
the problem is the natbox, being a linux it implements symmetric NAT
which allocates a new port for media, other than STUN returned.
To solve the problem you have to use nathelper/rtpproxy or mediaproxy on
the SIP server.
Cheers,
Daniel
On 09/24/05 00:23, Diego Valencia wrote:
Hi everybody, I have a "one way audio"
problem. My enviroment is:
xx.xx.63.75/27 = SER
xx.xx.63.68/27 = Natbox (linux iptables masquerade)
xx.xx.70.2/25 = STUN server
xx.xx.63.78/27 = PAP1 linksys AOR 2000
10.1.1.233/24 = PAP2 linksys AOR 2001 (behind NATbox with stun enable)
I have no audio from PAP1 to PAP2 when the call is made from PAP1 to
PAP2, but when the call is made from PAP2 to PAP1 it works correctly.
I see on the natbox that the RTP packet is droped with unreachable
cause (icmp messages).
This is the trace (ngrep) for the call from PAP1 to PAP2 on external
interface of the natbox, where I can see STUN packets and the number
udp port that the PAP willl be use (16444 to 16447).
The problem is natbox use other port (1173). I don't know if this
problem is on natbox or stun server or PAP.
Can you helpme?
Thanks!!
U xx.xx.63.75:5060 -> xx.xx.63.68:5060
INVITE sip:2001@xx.xx.63.68:5060 SIP/2.0..Record-Route:
<sip:xx.xx.63.75;ftag=d1ccd3db9e31eb1fo0;lr=on>..Via: SIP/2.0/UDP
xx.xx.63.75;branch=z9hG4bK52fb.41985863.0..Via: SIP/2.0/UDP
xx.xx.63.78:5060;branch=z9hG4bK-57b1577f..From: 2000 <sip:5
890000@xx.xx.63.75>;tag=d1ccd3db9e31eb1fo0..To
<mailto:890000@xx.xx.63.75%3E;tag=d1ccd3db9e31eb1fo0..To>:
<sip:2001@xx.xx.63.75>..Call-ID: d6e2df8b-5193d32f@xx.xx.63.78..CSeq
<mailto:d6e2df8b-5193d32f@xx.xx.63.78..CSeq>: 101
INVITE..Max-Forwards: 16..Contact: 2000
<sip:2000@xx.xx.63.78:5060>..Expires: 240..User-Agent:
Linksys/PAP2-2.0.10(L
Sc)..Content-Length: 420..Allow: ACK, BYE, CANCEL, INFO, INVITE,
NOTIFY, OPTIONS, REFER..Supported: x-sipura..Content-Type: app
lication/sdp....v=0..o=- 29375 29375 IN IP4 xx.xx.63.78..s=-..c=IN
IP4 xx.xx.63.78..t=0 0..m=audio 16472 RTP/AVP 18 0 2 4 8 9
6 97 98 100 101..a=rtpmap:18 G729a/8000..a=rtpmap:0
PCMU/8000..a=rtpmap:2 G726-32/8000..a=rtpmap:4 G723/8000..a=rtpmap:8
PCMA/8
000..a=rtpmap:96 G726-40/8000..a=rtpmap:97 G726-24/8000..a=rtpmap:98
G726-16/8000..a=rtpmap:100 NSE/8000..a=rtpmap:101 telephon
e-event/8000..a=fmtp:101
0-15..a=ptime:30..a=sendrecv..
#
U xx.xx.63.68:5060 -> xx.xx.63.75:5060
SIP/2.0 100 Trying..To: <sip:2001@xx.xx.63.75>..From: 2000
<sip:2000@xx.xx.63.75>;tag=d1ccd3db9e31eb1fo0..Call-ID
: d6e2df8b-5193d32f@xx.xx.63.78..CSeq
<mailto:d6e2df8b-5193d32f@xx.xx.63.78..CSeq>: 101 INVITE..Via:
SIP/2.0/UDP xx.xx.63.75;branch=z9hG4bK52fb.41985863.0..Via: SIP/2.0/U
DP xx.xx.63.78:5060;branch=z9hG4bK-57b1577f..Record-Route:
<sip:xx.xx.63.75;ftag=d1ccd3db9e31eb1fo0;lr=on>..Server: Linksys/P
AP2-2.0.10(LSc)..Content-Length:
0....
#
U xx.xx.63.68:5060 -> xx.xx.70.2:3478
.....*f..*f..*f..*f.
#
U xx.xx.63.68:16444 -> xx.xx.70.2:3478
.....OB..OB..OB..OB.
#
U xx.xx.63.68:16445 -> xx.xx.70.2:3478
....................
#
U xx.xx.63.68:16446 -> xx.xx.70.2:3478
.......&...&...&...&
#
U xx.xx.63.68:16447 -> xx.xx.70.2:3478
....#...#...#...#...
#
U xx.xx.70.2:3478 -> xx.xx.63.68:16447
...$#...#...#...#.........@?.+?D.........+F..........+F
<mailto:...$#...#...#...#.........@?.+?D.........+F..........+F>.
#
U xx.xx.63.68:5060 -> xx.xx.70.2:3478
.....*f..*f..*f..*f.
#
U xx.xx.63.68:16444 -> xx.xx.70.2:3478
.....OB..OB..OB..OB.
#
U xx.xx.70.2:3478 -> xx.xx.63.68:5060
...$.*f..*f..*f..*f..........+?D.........+F..........+F.
#
U xx.xx.63.68:16445 -> xx.xx.70.2:3478
....................
#
U xx.xx.63.68:16446 -> xx.xx.70.2:3478
.......&...&...&...&
#
U xx.xx.70.2:3478 -> xx.xx.63.68:16444
...$.OB..OB..OB..OB.......@<.+?D.........+F..........+F
<mailto:...$.OB..OB..OB..OB.......@%3C.+?D.........+F..........+F>.
#
U xx.xx.70.2:3478 -> xx.xx.63.68:16446
...$...&...&...&...&......@>.+?D.........+F..........+F
<mailto:...$...&...&...&...&......@%3E.+?D.........+F..........+F>.
#
U xx.xx.63.68:5060 -> xx.xx.63.75:5060
SIP/2.0 180 Ringing..To:
<sip:2001@xx.xx.63.75>;tag=156298945b7d27i0..From: 2000
<sip:2000@xx.xx.63.75>;tag=d1ccd
3db9e31eb1fo0..Call-ID: d6e2df8b-5193d32f@xx.xx.63.78..CSeq
<mailto:d6e2df8b-5193d32f@xx.xx.63.78..CSeq>: 101 INVITE..Via:
SIP/2.0/UDP xx.xx.63.75;branch=z9hG4bK52fb.4198
5863.0..Via: SIP/2.0/UDP
xx.xx.63.78:5060;branch=z9hG4bK-57b1577f..Record-Route:
<sip:xx.xx.63.75;ftag=d1ccd3db9e31eb1fo0;lr=
on>..Server: Linksys/PAP2-2.0.10(LSc)..Content-Length:
0....
#
U xx.xx.70.2:3478 -> xx.xx.63.68:16444
...$.OB..OB..OB..OB.......@<.+?D.........+F..........+F
<mailto:...$.OB..OB..OB..OB.......@%3C.+?D.........+F..........+F>.
#
U xx.xx.63.68:5060 -> xx.xx.63.75:5060
SIP/2.0 200 OK..To:
<sip:2001@xx.xx.63.75>;tag=156298945b7d27i0..From: 2000
<sip:2000@xx.xx.63.75>;tag=d1ccd3db9e
31eb1fo0..Call-ID: d6e2df8b-5193d32f@xx.xx.63.78..CSeq
<mailto:d6e2df8b-5193d32f@xx.xx.63.78..CSeq>: 101 INVITE..Via:
SIP/2.0/UDP xx.xx.63.75;branch=z9hG4bK52fb.41985863.
0..Via: SIP/2.0/UDP
xx.xx.63.78:5060;branch=z9hG4bK-57b1577f..Record-Route:
<sip:xx.xx.63.75;ftag=d1ccd3db9e31eb1fo0;lr=on>..
Contact: 2001 <sip:2001@xx.xx.63.68:5060>..Server:
Linksys/PAP2-2.0.10(LSc)..Content-Length: 236..Allow: ACK, BYE, CANCE
L, INFO, INVITE, NOTIFY, OPTIONS, REFER..Supported:
x-sipura..Content-Type: application/sdp....v=0..o=- 659101 659101 IN
IP4 20
0.43.63.68..s=-..c=IN IP4 xx.xx.63.68..t=0 0..m=audio 16444 RTP/AVP
18 100 101..a=rtpmap:18 G729a/8000..a=rtpmap:100 NSE/8000.
.a=rtpmap:101 telephone-event/8000..a=fmtp:101
0-15..a=ptime:30..a=sendrecv..
#
U xx.xx.63.75:5060 -> xx.xx.63.68:5060
ACK sip:2001@xx.xx.63.68:5060 SIP/2.0..Record-Route:
<sip:xx.xx.63.75;ftag=d1ccd3db9e31eb1fo0;lr=on>..Via: SIP/2.0/UDP 200
.43.63.75;branch=0..Via: SIP/2.0/UDP
xx.xx.63.78:5060;branch=z9hG4bK-5a4c9c84..From: 2000
<sip:2000@xx.xx.63.75>;tag
=d1ccd3db9e31eb1fo0..To:
<sip:2001@xx.xx.63.75>;tag=156298945b7d27i0..Call-ID:
d6e2df8b-5193d32f@xx.xx.63.78..CSeq
<mailto:d6e2df8b-5193d32f@xx.xx.63.78..CSeq>: 101 AC
K..Max-Forwards: 16..Contact: 2000
<sip:2000@xx.xx.63.78:5060>..User-Agent:
Linksys/PAP2-2.0.10(LSc)..Content-Length:
0....
#
U xx.xx.63.78:16472 -> xx.xx.63.68:16444
..8...-..L....@.....tF.34..V.|B..n..a.k(.R
<mailto:..8...-..L....@.....tF.34..V.%7CB..n..a.k%28.R>
#
I xx.xx.63.68 -> xx.xx.63.78 3:3
....E..F.........+?N.+?D@X@<.2....8...-..L....@.....tF.34..V.|B..n..a.k(.R
<mailto:....E..F.........+?N.+?D@X@%3C.2....8...-..L....@.....tF.34..V.%7CB..n..a.k%28.R>
#
U xx.xx.63.68:1173 -> xx.xx.63.78:16472
..!o..vy.F.!...|...&.T.BP..Z..n...:.3..d..
#
U xx.xx.63.78:16472 -> xx.xx.63.68:16444
..8......L...
.s..._exR..Kc.....+.O<.RZ.O{
#
I xx.xx.63.68 -> xx.xx.63.78 3:3
....E..F.........+?N.+?D@X@<.2....8......L
<mailto:....E..F.........+?N.+?D@X@%3C.2....8......L>...
.s..._exR..Kc.....+.O<.RZ.O{
#
U xx.xx.63.68:1173 -> xx.xx.63.78:16472
..!p..wi.F.!.'D.F...K....@C..e.Z.[~P...Et
<mailto:..%21p..wi.F.%21.%27D.F...K....@C..e.Z.%5B%7EP...Et>,
#
U xx.xx.63.78:16472 -> xx.xx.63.68:16444
..8.../..L......@H..._...,[.P...rU.A..P
<mailto:..8.../..L......@H..._...,%5B.P...rU.A..P>...
#
I xx.xx.63.68 -> xx.xx.63.78 3:3
....E..F.........+?N.+?D@X@<.2....8.../..L......@H..._...,[.P...rU.A..P
<mailto:....E..F.........+?N.+?D@X@%3C.2....8.../..L......@H..._...,%5B.P...rU.A..P>...
#
U xx.xx.63.68:1173 -> xx.xx.63.78:16472
..!q..xY.F.!....Mf.....Fu.Q.....~.}....v..
#
U xx.xx.63.78:16472 -> xx.xx.63.68:16444
..8...0..L..\.~..h..+..|S.C.M..~6W}....6sR
#
I xx.xx.63.68 -> xx.xx.63.78 3:3
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