31 Jul
2003
31 Jul
'03
2:40 p.m.
Using SER with Xlite softphone (either v.1.x or 2.0)
through the Internet, one-way communication is
experienced by the UA (only outgoing traffic is
possible).
The UAs are connected to the Internet via public IP
address and no firewall is enabled. The problem has
been replicated with 3 different users, over 3
different ISPs.
However, the same users, can always communicate
without problem over the same connections, using
Windows Messenger.
In both cases, I have captured (ngrep) the SIP packets
from the server port (see here after).
The topology of the SER and UAs, is as following:
UA1 -- public IP ---- Internet ---- NAT -- ATA186
(Xlite) (dialup) | (DSL)
or |
(Win Mes) |
|
Router(NAT)
|
DMZ
|
SER (listen on 5070 udp)
Could anyone take a look in the packets for Xlite and
Messenger and see what makes the first one acting as
being behind a firewall, while Win Messenger is
working properly ???
Thanks,
George
PS. Xlite is working properly with the SER in Intranet
environment.
===================================================
Windows Messenger
===================
U 62.4.193.25:3587 -> 10.0.0.9:5070
REGISTER sip:voiceglobe.net SIP/2.0..
Via: SIP/2.0/UDP 62.4.193.25:10616..
From:
<sip:kapelios@voiceglobe.net>;tag=8c67d569-eac2-4665-89bd-a800e64c9f52..
To: <sip:kapelios@voiceglobe.net>..
Call-ID:
9dc07f3f-4c48-48e4-8d56-a77b8dc5a044(a)62.4.193.25..
CSeq: 1 REGISTER..
Contact: <sip:62.4.193.25:10616>;methods="INVITE,
MESSAGE, INFO, SUBSCRIBE, OPTIONS, BYE, CANCEL,
NOTIFY, ACK"..
User-Agent: Windows RTC/1.0..
Expires: 1200..
Event: registration..
Allow-Events: presence..
Content-Length: 0....
#
U 10.0.0.9:5070 -> 62.4.193.25:10616
SIP/2.0 200 OK..
Via: SIP/2.0/UDP 62.4.193.25:10616..
From:
<sip:kapelios@voiceglobe.net>;tag=3efd91fa-22c4-4c78-bc54-8896cb8a4617..
To:
<sip:kapelios@voiceglobe.net>;tag=46a6e639fa02362ac1ba4fea686e961.7623..
Call-ID:
c8a90fea-69c9-4eb0-b0fa-46bcf1db4253(a)62.4.193.25..
CSeq: 2 REGISTER..
Contact: <sip:62.4.193.25:10616>;q=0.00;expires=1200..
Server: Sip EXpress router (0.8.11pre29
(i386/linux))..
Content-Length: 0..
Warning: 392 10.0.0.9:5070 "Noisy feedback tells:
pid=1155 req_src_ip=62.4.193.25
req_src_port=3588 in_uri=sip:voiceglobe.net
out_uri=sip:voiceglobe.net via_cnt==1"....
#
U 62.4.193.25:3588 -> 10.0.0.9:5070
INVITE sip:11111@voiceglobe.net SIP/2.0..
Via: SIP/2.0/UDP 62.4.193.25:10616..
From: "kapelios"
<sip:kapelios@voiceglobe.net>;tag=2f2be407-7d38-4dd0-938b-068517646fd0..
To: <sip:11111@voiceglobe.net>..
Call-ID:
54b641af-9616-481c-8e37-cb09797a266a(a)62.4.193.25..
CSeq: 1 INVITE..
Contact: <sip:62.4.193.25:10616>..
User-Agent: Windows RTC/1.0..
Content-Type: application/sdp..
Content-Length: 293....
v=0..
o=i8200 0 0 IN IP4 62.4.193.25..
s=session..
c=IN IP4 62.4.193.25..
b=CT:32..
t=0 0..
m=audio 37890 RTP/AVP 97 111 4 3 101..
a=rtpmap:97 red/8000..
a=rtpmap:111 SIREN/16000..
a=fmtp:111 bitrate=16000..
a=rtpmap:4 G723/8000..
a=rtpmap:3 GSM/8000..
a=rtpmap:101 telephone-event/8000..
a=fmtp:101 0-16..
#
U 10.0.0.9:5070 -> 62.4.193.25:10616
SIP/2.0 100 trying -- your call is important to us..
Via: SIP/2.0/UDP 62.4.193.25:10616..
From: "kapelios"
<sip:kapelios@voiceglobe.net>;tag=2f2be407-7d38-4dd0-938b-068517646fd0..
To: <sip:11111@voiceglobe.net>..
Call-ID:
54b641af-9616-481c-8e37-cb09797a266a(a)62.4.193.25..
CSeq: 1 INVITE..
Server: Sip EXpress router (0.8.11pre29
(i386/linux))..
Content-Length: 0..
Warning: 392 10.0.0.9:5070 "Noisy feedback tells:
pid=1156 req_src_ip=62.4.193.25
req_src_port=3588 in_uri=sip:11111@voiceglobe.net
out_uri=sip:autoanswer@68.212.243.205:5060;transport=udp
via_cnt==1"....
#
U 10.0.0.9:5070 -> 68.212.243.205:5060
INVITE
sip:autoanswer@68.212.243.205:5060;transport=udp
SIP/2.0..
Max-Forwards: 10..
Record-Route: <sip:11111@10.0.0.9:5070;
ftag=2f2be407-7d38-4dd0-938b-068517646fd0;lr>..
Via: SIP/2.0/UDP
10.0.0.9:5070;branch=z9hG4bK6adc.a29540c4.0..
Via: SIP/2.0/UDP 62.4.193.25:10616..
From: "kapelios"
<sip:kapelios@voiceglobe.net>;tag=2f2be407-7d38-4dd0-938b-068517646fd0..
To: <sip:11111@voiceglobe.net>..
Call-ID:
54b641af-9616-481c-8e37-cb09797a266a(a)62.4.193.25..
CSeq: 1 INVITE..
Contact: <sip:62.4.193.25:10616>..
User-Agent: Windows RTC/1.0..
Content-Type: application/sdp..
Content-Length: 293..
..
v=0..o=i8200 0 0 IN IP4 62.4.193.25..
s=session..
c=IN IP4 62.4.193.25..
b=CT:32..
t=0 0..
m=audio 37890 RTP/AVP 97 111 4 3 101..
a=rtpmap:97 red/8000..
a=rtpmap:111 SIREN/16000..
a=fmtp:111 bitrate=16000..
a=rtpmap:4 G723/8000..
a=rtpmap:3 GSM/8000..
a=rtpmap:101 telephone-event/8000..
a=fmtp:101 0-16..
#
U 68.212.243.205:5060 -> 10.0.0.9:5070
SIP/2.0 180 Ringing..
Via: SIP/2.0/UDP
10.0.0.9:5070;branch=z9hG4bK6adc.a29540c4.0..
Via: SIP/2.0/UDP 62.4.193.25:10616..
From: "kapelios"
<sip:kapelios@voiceglobe.net>;tag=2f2be407-7d38-4dd0-938b-068517646fd0..
To: <sip:11111@voiceglobe.net>;tag=2796180519..
Call-ID:
54b641af-9616-481c-8e37-cb09797a266a(a)62.4.193.25..
CSeq: 1 INVITE..
Server: Cisco ATA 186 v2.16 ata18x (030509f1)..
Content-Length: 0....
#
U 68.212.243.205:5060 -> 10.0.0.9:5070
SIP/2.0 200 OK..Via: SIP/2.0/UDP
10.0.0.9:5070;branch=z9hG4bK6adc.a29540c4.0..
Via: SIP/2.0/UDP 62.4.193.25:10616..
Record-Route:
<sip:11111@10.0.0.9:5070;ftag=2f2be407-7d38-4dd0-938b-068517646fd0;lr>..
From: "kapelios"
<sip:kapelios@voiceglobe.net>;tag=2f2be407-7d38-4dd0-938b-068517646fd0..
To: <sip:11111@voiceglobe.net>;tag=2796180519..
Call-ID:
54b641af-9616-481c-8e37-cb09797a266a(a)62.4.193.25..
CSeq: 1 INVITE..
Contact:
<sip:autoanswer@68.212.243.205:5060;transport=udp>..
Server: Cisco ATA 186 v2.16 ata18x (030509f1)..
Content-Length: 201..
Content-Type: application/sdp..
..
v=0..
o=autoanswer 4767 4767 IN IP4 192.168.1.50..
s=ATA186 Call..
c=IN IP4 68.212.243.205..
t=0 0..
m=audio 20002 RTP/AVP 4 101..
a=rtpmap:4 G723/8000/1..
a=rtpmap:101 telephone-event/8000..
a=fmtp:101 0-15..
#
==================================================
X-Lite
========
U 62.4.193.25:5060 -> 10.0.0.9:5070
REGISTER sip:voiceglobe.net SIP/2.0..
Via: SIP/2.0/UDP 62.4.193.25:5060..
From: <sip:nikoline@voiceglobe.net>..
To: <sip:nikoline@voiceglobe.net>..
Contact: "G. Kapelios"
<sip:nikoline@62.4.193.25:5060>..
Call-ID:
1F385A1BD0C648B381836793799E029A(a)voiceglobe.net..
CSeq: 16149 REGISTER..
Expires: 500..
User-Agent: X-Lite build 1011..
Content-Length: 0....
#
U 10.0.0.9:5070 -> 62.4.193.25:5060
SIP/2.0 200 OK..
Via: SIP/2.0/UDP 62.4.193.25:5060..
From: <sip:nikoline@voiceglobe.net>..
To: <sip:nikoline@voiceglobe.net>;
tag=46a6e639fa023622ac1ba4fea686e961.7d05..
Call-ID:
1F385A1BD0C648B381836793799E029A(a)voiceglobe.net..
CSeq: 16150 REGISTER..
Contact:
<sip:nikoline@62.4.193.25:5060>;q=0.00;expires=500..
Server: Sip EXpress router (0.8.11pre29(i386/linux))..
Content-Length: 0..
Warning: 392 10.0.0.9:5070 "Noisy feedback tells:
pid=1156 req_src_ip=62.4.193.25
req_src_port=5060 in_uri=sip:voiceglobe.net
out_uri=sip:voiceglobe.net via_cnt==1"....
#
U 62.4.193.25:5060 -> 10.0.0.9:5070
INVITE sip:11111@voiceglobe.net SIP/2.0..
Via: SIP/2.0/UDP 62.4.193.25:5060..
From: G. Kapelios
<sip:nikoline@voiceglobe.net>;tag=301448250..
To: <sip:11111@voiceglobe.net>..
Contact: <sip:nikoline@62.4.193.25:5060>..
Call-ID:
7BCE0A51-7CC0-4892-BB6E-F10E67CFA94E(a)62.4.193.25..
CSeq: 18469 INVITE..
Content-Type: application/sdp..
User-Agent: X-Lite build 1011..
Content-Length: 290..
..
v=0..
o=nikoline 22941408 22941408 IN IP 4 62.4.193.25..
s=X-Lite..
c=IN IP4 62.4.193.25..
t=0 0..
m=audio 8000 RTP/AVP 0 8 3 98 97 101..
a=rtpmap:0 pcmu/8000..
a=rtpmap:8 pcma/8000..
a=rtpmap:3 gsm/8000..
a=rtpmap:98 iLBC..
a=rtpmap:97 speex/8000..
a=rtpmap:101 telephone-event/8000..
a=fmtp:101 0-15..
#
U 10.0.0.9:5070 -> 62.4.193.25:5060
SIP/2.0 100 trying -- your call is important to us..
Via: SIP/2.0/UDP 62.4.193.25:5060..
From: G. Kapelios
<sip:nikoline@voiceglobe.net>;tag=301448250..
To: <sip:11111@voiceglobe.net>..
Call-ID:
7BCE0A51-7CC0-4892-BB6E-F10E67CFA94E(a)62.4.193.25..
CSeq: 18469 INVITE..
Server: Sip EXpress router (0.8.11pre29
(i386/linux))..
Content-Length: 0..
Warning: 392 10.0.0.9:5070 "Noisy feedback tells:
pid=1155 req_src_ip=62.4.193.25
req_src_port=5060 in_uri=sip:11111@voiceglobe.net
out_uri=sip:autoanswer@68.212.243.205:5060;transport=udp
via_cnt==1"..
#
U 10.0.0.9:5070 -> 68.212.243.205:5060
INVITE
sip:autoanswer@68.212.243.205:5060;transport=udp
SIP/2.0..
Max-Forwards: 10..Record-Route:
<sip:11111@10.0.0.9:5070;ftag=301448250;lr>..
Via: SIP/2.0/UDP
10.0.0.9:5070;branch=z9hG4bK1882.4c4fc6e3.0..
Via: SIP/2.0/UDP 62.4.193.25:5060..
From: G. Kapelios
<sip:nikoline@voiceglobe.net>;tag=301448250..
To: <sip:11111@voiceglobe.net>..
Contact: <sip:nikoline@62.4.193.25:5060>..
Call-ID:
7BCE0A51-7CC0-4892-BB6E-F10E67CFA94E(a)62.4.193.25..
CSeq: 18469 INVITE..
Content-Type: application/sdp..User-Agent: X-Lite
build 1011..
Content-Length: 290..
..
v=0..
o=nikoline 22941408 22941408 IN IP4 62.4.193.25..
s=X-Lite..c=IN IP4 62.4.193.25..
t=0 0..
m=audio 8000 RTP/AVP 0 8 3 98 97 101..
a=rtpmap:0 pcmu/8000..
a=rtpmap:8 pcma/8000..
a=rtpmap:3 gsm/8000..
a=rtpmap:98 iLBC..
a=rtpmap:97 speex/8000..
a=rtpmap:101 telephone-event/8000..
a=fmtp:101 0-15..
#
U 68.212.243.205:5060 -> 10.0.0.9:5070
SIP/2.0 100 Trying..
Via: SIP/2.0/UDP
10.0.0.9:5070;branch=z9hG4bK1882.4c4fc6e3.0..
Via: SIP/2.0/UDP 62.4.193.25:5060..
From: G. Kapelios
<sip:nikoline@voiceglobe.net>;tag=301448250..
To: <sip:11111@voiceglobe.net>;tag=1719463769..
Call-ID:
7BCE0A51-7CC0-4892-BB6E-F10E67CFA94E(a)62.4.193.25..
CSeq: 18469 INVITE..
Server: Cisco ATA 186 v2.16 ata18x (030509f1)..
Content-Length: 0..
#
U 68.212.243.205:5060 -> 10.0.0.9:5070
SIP/2.0 180 Ringing..
Via: SIP/2.0/UDP
10.0.0.9:5070;branch=z9hG4bK1882.4c4fc6e3.0..
Via: SIP/2.0/UDP 62.4.193.25:5060..
From: G. Kapelios
<sip:nikoline@voiceglobe.net>;tag=301448250..
To: <sip:11111@voiceglobe.net>;tag=1719463769..
Call-ID:
7BCE0A51-7CC0-4892-BB6E-F10E67CFA94E(a)62.4.193.25..
CSeq: 18469 INVITE..Server: Cisco ATA 186 v2.16
ata18x (030509f1)..
Content-Length: 0..
#
U 68.212.243.205:5060 -> 10.0.0.9:5070
SIP/2.0 200 OK..
Via: SIP/2.0/UDP
10.0.0.9:5070;branch=z9hG4bK1882.4c4fc6e3.0..
Via: SIP/2.0/UDP 62.4.193.25:5060..
Record-Route:
<sip:11111@10.0.0.9:5070;ftag=301448250;lr>..
From: G. Kapelios
<sip:nikoline@voiceglobe.net>;tag=301448250..
To: <sip:11111@voiceglobe.net>;tag=1719463769..
Call-ID:
7BCE0A51-7CC0-4892-BB6E-F10E67CFA94E(a)62.4.193.25..
CSeq: 18469 INVITE..
Contact:
<sip:autoanswer@68.212.243.205:5060;transport=udp>..
Server: Cisco ATA 186 v2.16 ata18x (030509f1)..
Content-Length: 201..
Content-Type: application/sdp..
..
v=0..
o=autoanswer 5988 5988 IN IP4 192.168.1.50..
s=ATA186 Call..c=IN IP4 68.212.243.205..
t=0 0..m=audio 20002 RTP/AVP 0 101..
a=rtpmap:0 PCMU/8000/1..
a=rtpmap:101 telephone-event/8000..
a=fmtp:101 0-15..
#