13 Feb
2006
13 Feb
'06
7:27 a.m.
can anybody please help me. This is urgent. There is a continuous problem in
using SER. SER is not forwarding the packet correctly to client behind NAT.
Please have a look at this problem.
My network scenerio is:
192.168.0.2
+----------+
| ClientA |
+----------+
|
|
| eth1 eth0
| 192.168.0.1 | 172.25.25.83
+-------------|-------------+
| NAT1 |
+-------------|-------------+
|
|
|
172.25.25.84 |
+---------------------------+
|SER Proxy\Registrar, |
| STUN Server |
+---------------------------+
|172.25.25.85
|
|
|
| 172.25.25.88
+----------+
| ClientC |
+----------+
172.25.25.X ---- LAN (External Network for client A and C)
192.168.0.X ---- Private Network 1 (Internal Network for Client A)
ClientA and ClientC are sip clients with STUN functionality embedded.
NAT1 is internal LAN NAT. I mean for testing purpose, i have
used two machines with two network cards.
--------------------------------------------------------
Here is the problem:
Both clientA and clientB get registered successfully with Registrar. ClientA
get registered with NAT1 address 172.25.25.83. When ClientA starts sip
session by sending an invite to clientC, all works fine. But, when ClientC
starts the session by inviting clientA, Proxy tries to forward the message
invite directly to clientA. Although, clientA has already registered with
the registrar and has indicated its contact address as of NAT1. My question
is why proxy is not taking the contact address and sending invite there.
below is the sequence of messages that I captured using ehtereal on Linux
Plateform.
source=172.25.25.88:5060 to=172.25.25.84:5060
REGISTER sip:172.25.25.84:5060 SIP/2.0
Via: SIP/2.0/UDP 172.25.25.88:5060;rport;branch=z9hG4bK1507969566
From: <sip:c@172.25.25.88:5060>;tag=1981102178
To: <sip:c@172.25.25.88:5060>
Call-ID: 1003517860 [!at] 172.25.25.88 (replace the [!at] with a @)
CSeq: 1 REGISTER
Contact: <sip:c%94@172.25.25.88:5060>
Max-Forwards: 5
User-Agent: eXosip/0.1
Expires: 3600
Supported: 100rel
Supported: path
Content-Length: 0
source=172.25.25.84:5060 to=172.25.25.88:5060
IP/2.0 200 OK
Via: SIP/2.0/UDP 172.25.25.88:5060;rport=5060;branch=z9hG4bK1507969566
From: <sip:c@172.25.25.88:5060>;tag=1981102178
To: <sip:c@172.25.25.88:5060>;tag=b27e1a1d33761e85846fc98f5f3a7e58.0a43
Call-ID: 1003517860 [!at] 172.25.25.88 (replace the [!at] with a @)
CSeq: 1 REGISTER
Contact: <sip:c%94@172.25.25.88:5060>;expires=3600
Server: Sip EXpress router (0.9.6 (i386/linux))
Content-Length: 0
Warning: 392 172.25.25.84:5060 "Noisy feedback tells: pid=21679 req_src_ip=
172.25.25.88 req_src_port=5060 in_uri=sip:172.25.25.84:5060 out_uri=sip:
172.25.25.84:5060 via_cnt==1"
source=172.25.25.83:1025 to=172.25.25.84:5060
REGISTER sip:172.25.25.84:5060 SIP/2.0
Via: SIP/2.0/UDP 192.168.0.2:5060;rport;branch=z9hG4bK600315716
From: <sip:a@192.168.0.2:5060>;tag=658770091
To: <sip:a@192.168.0.2:5060>
Call-ID: 2091069424 [!at] 192.168.0.2 (replace the [!at] with a @)
CSeq: 1 REGISTER
Contact: <sip:a@172.25.25.83:1026>
Max-Forwards: 5
User-Agent: eXosip/0.1
Expires: 3600
Supported: 100rel
Supported: path
Content-Length: 0
source=172.25.25.83:1025 to=172.25.25.84:5060
REGISTER sip:172.25.25.84:5060 SIP/2.0
Via: SIP/2.0/UDP 192.168.0.2:5060;rport;branch=z9hG4bK600315716
From: <sip:a@192.168.0.2:5060>;tag=658770091
To: <sip:a@192.168.0.2:5060>
Call-ID: 2091069424 [!at] 192.168.0.2 (replace the [!at] with a @)
CSeq: 1 REGISTER
Contact: <sip:a@172.25.25.83:1026>
Max-Forwards: 5
User-Agent: eXosip/0.1
Expires: 3600
Supported: 100rel
Supported: path
Content-Length: 0
source=172.25.25.84:5060 to=172.25.25.83:1025
SIP/2.0 200 OK
Via: SIP/2.0/UDP 192.168.0.2:5060
;rport=1025;branch=z9hG4bK600315716;received=172.25.25.83
From: <sip:a@192.168.0.2:5060>;tag=658770091
To: <sip:a@192.168.0.2:5060>;tag=b27e1a1d33761e85846fc98f5f3a7e58.b319
Call-ID: 2091069424 [!at] 192.168.0.2 (replace the [!at] with a @)
CSeq: 1 REGISTER
Contact: <sip:a@172.25.25.83:1026>;expires=3600,
<sip:a@172.25.25.83:5060>;expires=2868
Server: Sip EXpress router (0.9.6 (i386/linux))
Content-Length: 0
Warning: 392 172.25.25.84:5060 "Noisy feedback tells: pid=21681 req_src_ip=
172.25.25.83 req_src_port=1025 in_uri=sip:172.25.25.84:5060 out_uri=sip:
172.25.25.84:5060 via_cnt==1"
source=172.25.25.84:5060 to=172.25.25.83:1025
SIP/2.0 200 OK
Via: SIP/2.0/UDP 192.168.0.2:5060
;rport=1025;branch=z9hG4bK600315716;received=172.25.25.83
From: <sip:a@192.168.0.2:5060>;tag=658770091
To: <sip:a@192.168.0.2:5060>;tag=b27e1a1d33761e85846fc98f5f3a7e58.b319
Call-ID: 2091069424 [!at] 192.168.0.2 (replace the [!at] with a @)
CSeq: 1 REGISTER
Contact: <sip:a@172.25.25.83:1026>;expires=3600,
<sip:a@172.25.25.83:5060>;expires=2868
Server: Sip EXpress router (0.9.6 (i386/linux))
Content-Length: 0
Warning: 392 172.25.25.84:5060 "Noisy feedback tells: pid=21682 req_src_ip=
172.25.25.83 req_src_port=1025 in_uri=sip:172.25.25.84:5060 out_uri=sip:
172.25.25.84:5060 via_cnt==1"
source=172.25.25.88:5060 to=172.25.25.84:5060
INVITE sip:172.25.25.84:5060 SIP/2.0
Via: SIP/2.0/UDP 172.25.25.88:5060;rport;branch=z9hG4bK1784363542
Route: <sip:a@192.168.0.2:5060>
From: <sip:c@172.25.25.88>;tag=1669898773
To: <sip:a@192.168.0.2:5060>
Call-ID: 1721341700 [!at] 172.25.25.88 (replace the [!at] with a @)
CSeq: 20 INVITE
Contact: <sip:c@172.25.25.88:5060>
Max-Forwards: 5
User-Agent: eXosip/0.1
Subject: hello
Expires: 120
Supported: 100rel
Allow: INVITE, ACK, UPDATE, INFO, CANCEL, BYE, OPTIONS, REFER, SUBSCRIBE,
NOTIFY, MESSAGE
Content-Type: application/sdp
Content-Length: 264
v=0
o=josua 0 0 IN IP4 172.25.25.88
s=conversation
c=IN IP4 172.25.25.88
t=0 0
m=audio 5071 RTP/AVP 0 8 101
a=rtpmap:0 PCMU/8000
a=rtpmap:8 PCMA/8000
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-11
a=rtcp:5072 IN IP4 172.25.25.88
a=direction:passive
source=172.25.25.84:5060 to=172.25.25.88:5060
SIP/2.0 100 trying -- your call is important to us
Via: SIP/2.0/UDP 172.25.25.88:5060;rport=5060;branch=z9hG4bK1784363542
From: <sip:c@172.25.25.88>;tag=1669898773
To: <sip:a@192.168.0.2:5060>
Call-ID: 1721341700 [!at] 172.25.25.88 (replace the [!at] with a @)
CSeq: 20 INVITE
Server: Sip EXpress router (0.9.6 (i386/linux))
Content-Length: 0
Warning: 392 172.25.25.84:5060 "Noisy feedback tells: pid=21677 req_src_ip=
172.25.25.88 req_src_port=5060 in_uri=sip:172.25.25.84:5060 out_uri=
sip:a@192.168.0.2:5060 via_cnt==1"
source=172.25.25.84:5060 to=192.168.0.2:5060
INVITE sip:a@192.168.0.2:5060 SIP/2.0
Record-Route: <sip:172.25.25.84;ftag=1669898773;lr=on>
Via: SIP/2.0/UDP 172.25.25.84;branch=z9hG4bK21ea.9b53c1e3.0
Via: SIP/2.0/UDP 172.25.25.88:5060;rport=5060;branch=z9hG4bK1784363542
From: <sip:c@172.25.25.88>;tag=1669898773
To: <sip:a@192.168.0.2:5060>
Call-ID: 1721341700 [!at] 172.25.25.88 (replace the [!at] with a @)
CSeq: 20 INVITE
Contact: <sip:c@172.25.25.88:5060>
Max-Forwards: 4
User-Agent: eXosip/0.1
Subject: hello
Expires: 120
Supported: 100rel
Allow: INVITE, ACK, UPDATE, INFO, CANCEL, BYE, OPTIONS, REFER, SUBSCRIBE,
NOTIFY, MESSAGE
Content-Type: application/sdp
Content-Length: 264
Route: <sip:172.25.25.84:5060>
P-hint: rr-enforced
v=0
o=josua 0 0 IN IP4 172.25.25.88
s=conversation
c=IN IP4 172.25.25.88
t=0 0
m=audio 5071 RTP/AVP 0 8 101
a=rtpmap:0 PCMU/8000
a=rtpmap:8 PCMA/8000
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-11
a=rtcp:5072 IN IP4 172.25.25.88
a=direction:passive
source=172.25.25.84:5060 to=192.168.0.2:5060
INVITE sip:a@192.168.0.2:5060 SIP/2.0
Record-Route: <sip:172.25.25.84;ftag=1669898773;lr=on>
Via: SIP/2.0/UDP 172.25.25.84;branch=z9hG4bK21ea.9b53c1e3.0
Via: SIP/2.0/UDP 172.25.25.88:5060;rport=5060;branch=z9hG4bK1784363542
From: <sip:c@172.25.25.88>;tag=1669898773
To: <sip:a@192.168.0.2:5060>
Call-ID: 1721341700 [!at] 172.25.25.88 (replace the [!at] with a @)
CSeq: 20 INVITE
Contact: <sip:c@172.25.25.88:5060>
Max-Forwards: 4
User-Agent: eXosip/0.1
Subject: hello
Expires: 120
Supported: 100rel
Allow: INVITE, ACK, UPDATE, INFO, CANCEL, BYE, OPTIONS, REFER, SUBSCRIBE,
NOTIFY, MESSAGE
Content-Type: application/sdp
Content-Length: 264
Route: <sip:172.25.25.84:5060>
P-hint: rr-enforced
v=0
o=josua 0 0 IN IP4 172.25.25.88
s=conversation
c=IN IP4 172.25.25.88
t=0 0
m=audio 5071 RTP/AVP 0 8 101
a=rtpmap:0 PCMU/8000
a=rtpmap:8 PCMA/8000
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-11
a=rtcp:5072 IN IP4 172.25.25.88
a=direction:passive
source=172.25.25.84:5060 to=192.168.0.2:5060
INVITE sip:a@192.168.0.2:5060 SIP/2.0
Record-Route: <sip:172.25.25.84;ftag=1669898773;lr=on>
Via: SIP/2.0/UDP 172.25.25.84;branch=z9hG4bK21ea.9b53c1e3.0
Via: SIP/2.0/UDP 172.25.25.88:5060;rport=5060;branch=z9hG4bK1784363542
From: <sip:c@172.25.25.88>;tag=1669898773
To: <sip:a@192.168.0.2:5060>
Call-ID: 1721341700 [!at] 172.25.25.88 (replace the [!at] with a @)
CSeq: 20 INVITE
Contact: <sip:c@172.25.25.88:5060>
Max-Forwards: 4
User-Agent: eXosip/0.1
Subject: hello
Expires: 120
Supported: 100rel
Allow: INVITE, ACK, UPDATE, INFO, CANCEL, BYE, OPTIONS, REFER, SUBSCRIBE,
NOTIFY, MESSAGE
Content-Type: application/sdp
Content-Length: 264
Route: <sip:172.25.25.84:5060>
P-hint: rr-enforced
v=0
o=josua 0 0 IN IP4 172.25.25.88
s=conversation
c=IN IP4 172.25.25.88
t=0 0
m=audio 5071 RTP/AVP 0 8 101
a=rtpmap:0 PCMU/8000
a=rtpmap:8 PCMA/8000
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-11
a=rtcp:5072 IN IP4 172.25.25.88
a=direction:passive
source=172.25.25.84:5060 to=192.168.0.2:5060
INVITE sip:a@192.168.0.2:5060 SIP/2.0
Record-Route: <sip:172.25.25.84;ftag=1669898773;lr=on>
Via: SIP/2.0/UDP 172.25.25.84;branch=z9hG4bK21ea.9b53c1e3.0
Via: SIP/2.0/UDP 172.25.25.88:5060;rport=5060;branch=z9hG4bK1784363542
From: <sip:c@172.25.25.88>;tag=1669898773
To: <sip:a@192.168.0.2:5060>
Call-ID: 1721341700 [!at] 172.25.25.88 (replace the [!at] with a @)
CSeq: 20 INVITE
Contact: <sip:c@172.25.25.88:5060>
Max-Forwards: 4
User-Agent: eXosip/0.1
Subject: hello
Expires: 120
Supported: 100rel
Allow: INVITE, ACK, UPDATE, INFO, CANCEL, BYE, OPTIONS, REFER, SUBSCRIBE,
NOTIFY, MESSAGE
Content-Type: application/sdp
Content-Length: 264
Route: <sip:172.25.25.84:5060>
P-hint: rr-enforced
v=0
o=josua 0 0 IN IP4 172.25.25.88
s=conversation
c=IN IP4 172.25.25.88
t=0 0
m=audio 5071 RTP/AVP 0 8 101
a=rtpmap:0 PCMU/8000
a=rtpmap:8 PCMA/8000
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-11
a=rtcp:5072 IN IP4 172.25.25.88
a=direction:passive
source=172.25.25.84:5060 to=192.168.0.2:5060
INVITE sip:a@192.168.0.2:5060 SIP/2.0
Record-Route: <sip:172.25.25.84;ftag=1669898773;lr=on>
Via: SIP/2.0/UDP 172.25.25.84;branch=z9hG4bK21ea.9b53c1e3.0
Via: SIP/2.0/UDP 172.25.25.88:5060;rport=5060;branch=z9hG4bK1784363542
From: <sip:c@172.25.25.88>;tag=1669898773
To: <sip:a@192.168.0.2:5060>
Call-ID: 1721341700 [!at] 172.25.25.88 (replace the [!at] with a @)
CSeq: 20 INVITE
Contact: <sip:c@172.25.25.88:5060>
Max-Forwards: 4
User-Agent: eXosip/0.1
Subject: hello
Expires: 120
Supported: 100rel
Allow: INVITE, ACK, UPDATE, INFO, CANCEL, BYE, OPTIONS, REFER, SUBSCRIBE,
NOTIFY, MESSAGE
Content-Type: application/sdp
Content-Length: 264
Route: <sip:172.25.25.84:5060>
P-hint: rr-enforced
v=0
o=josua 0 0 IN IP4 172.25.25.88
s=conversation
c=IN IP4 172.25.25.88
t=0 0
m=audio 5071 RTP/AVP 0 8 101
a=rtpmap:0 PCMU/8000
a=rtpmap:8 PCMA/8000
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-11
a=rtcp:5072 IN IP4 172.25.25.88
a=direction:passive
source=172.25.25.84:5060 to=192.168.0.2:5060
INVITE sip:a@192.168.0.2:5060 SIP/2.0
Record-Route: <sip:172.25.25.84;ftag=1669898773;lr=on>
Via: SIP/2.0/UDP 172.25.25.84;branch=z9hG4bK21ea.9b53c1e3.0
Via: SIP/2.0/UDP 172.25.25.88:5060;rport=5060;branch=z9hG4bK1784363542
From: <sip:c@172.25.25.88>;tag=1669898773
To: <sip:a@192.168.0.2:5060>
Call-ID: 1721341700 [!at] 172.25.25.88 (replace the [!at] with a @)
CSeq: 20 INVITE
Contact: <sip:c@172.25.25.88:5060>
Max-Forwards: 4
User-Agent: eXosip/0.1
Subject: hello
Expires: 120
Supported: 100rel
Allow: INVITE, ACK, UPDATE, INFO, CANCEL, BYE, OPTIONS, REFER, SUBSCRIBE,
NOTIFY, MESSAGE
Content-Type: application/sdp
Content-Length: 264
Route: <sip:172.25.25.84:5060>
P-hint: rr-enforced
v=0
o=josua 0 0 IN IP4 172.25.25.88
s=conversation
c=IN IP4 172.25.25.88
t=0 0
m=audio 5071 RTP/AVP 0 8 101
a=rtpmap:0 PCMU/8000
a=rtpmap:8 PCMA/8000
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-11
a=rtcp:5072 IN IP4 172.25.25.88
a=direction:passive
source=172.25.25.84:5060 to=192.168.0.2:5060
INVITE sip:a@192.168.0.2:5060 SIP/2.0
Record-Route: <sip:172.25.25.84;ftag=1669898773;lr=on>
Via: SIP/2.0/UDP 172.25.25.84;branch=z9hG4bK21ea.9b53c1e3.0
Via: SIP/2.0/UDP 172.25.25.88:5060;rport=5060;branch=z9hG4bK1784363542
From: <sip:c@172.25.25.88>;tag=1669898773
To: <sip:a@192.168.0.2:5060>
Call-ID: 1721341700 [!at] 172.25.25.88 (replace the [!at] with a @)
CSeq: 20 INVITE
Contact: <sip:c@172.25.25.88:5060>
Max-Forwards: 4
User-Agent: eXosip/0.1
Subject: hello
Expires: 120
Supported: 100rel
Allow: INVITE, ACK, UPDATE, INFO, CANCEL, BYE, OPTIONS, REFER, SUBSCRIBE,
NOTIFY, MESSAGE
Content-Type: application/sdp
Content-Length: 264
Route: <sip:172.25.25.84:5060>
P-hint: rr-enforced
v=0
o=josua 0 0 IN IP4 172.25.25.88
s=conversation
c=IN IP4 172.25.25.88
t=0 0
m=audio 5071 RTP/AVP 0 8 101
a=rtpmap:0 PCMU/8000
a=rtpmap:8 PCMA/8000
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-11
a=rtcp:5072 IN IP4 172.25.25.88
a=direction:passive
source=172.25.25.84:5060 to=192.168.0.2:5060
INVITE sip:a@192.168.0.2:5060 SIP/2.0
Record-Route: <sip:172.25.25.84;ftag=1669898773;lr=on>
Via: SIP/2.0/UDP 172.25.25.84;branch=z9hG4bK21ea.9b53c1e3.0
Via: SIP/2.0/UDP 172.25.25.88:5060;rport=5060;branch=z9hG4bK1784363542
From: <sip:c@172.25.25.88>;tag=1669898773
To: <sip:a@192.168.0.2:5060>
Call-ID: 1721341700 [!at] 172.25.25.88 (replace the [!at] with a @)
CSeq: 20 INVITE
Contact: <sip:c@172.25.25.88:5060>
Max-Forwards: 4
User-Agent: eXosip/0.1
Subject: hello
Expires: 120
Supported: 100rel
Allow: INVITE, ACK, UPDATE, INFO, CANCEL, BYE, OPTIONS, REFER, SUBSCRIBE,
NOTIFY, MESSAGE
Content-Type: application/sdp
Content-Length: 264
Route: <sip:172.25.25.84:5060>
P-hint: rr-enforced
v=0
o=josua 0 0 IN IP4 172.25.25.88
s=conversation
c=IN IP4 172.25.25.88
t=0 0
m=audio 5071 RTP/AVP 0 8 101
a=rtpmap:0 PCMU/8000
a=rtpmap:8 PCMA/8000
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-11
a=rtcp:5072 IN IP4 172.25.25.88
a=direction:passive
source=172.25.25.84:5060 to=192.168.0.2:5060
INVITE sip:a@192.168.0.2:5060 SIP/2.0
Record-Route: <sip:172.25.25.84;ftag=1669898773;lr=on>
Via: SIP/2.0/UDP 172.25.25.84;branch=z9hG4bK21ea.9b53c1e3.0
Via: SIP/2.0/UDP 172.25.25.88:5060;rport=5060;branch=z9hG4bK1784363542
From: <sip:c@172.25.25.88>;tag=1669898773
To: <sip:a@192.168.0.2:5060>
Call-ID: 1721341700 [!at] 172.25.25.88 (replace the [!at] with a @)
CSeq: 20 INVITE
Contact: <sip:c@172.25.25.88:5060>
Max-Forwards: 4
User-Agent: eXosip/0.1
Subject: hello
Expires: 120
Supported: 100rel
Allow: INVITE, ACK, UPDATE, INFO, CANCEL, BYE, OPTIONS, REFER, SUBSCRIBE,
NOTIFY, MESSAGE
Content-Type: application/sdp
Content-Length: 264
Route: <sip:172.25.25.84:5060>
P-hint: rr-enforced
v=0
o=josua 0 0 IN IP4 172.25.25.88
s=conversation
c=IN IP4 172.25.25.88
t=0 0
m=audio 5071 RTP/AVP 0 8 101
a=rtpmap:0 PCMU/8000
a=rtpmap:8 PCMA/8000
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-11
a=rtcp:5072 IN IP4 172.25.25.88
a=direction:passive
source=172.25.25.84:5060 to=172.25.25.88:5060
cSIP/2.0 408 Request Timeout
Via: SIP/2.0/UDP 172.25.25.88:5060;rport=5060;branch=z9hG4bK1784363542
From: <sip:c@172.25.25.88>;tag=1669898773
To: <sip:a@192.168.0.2:5060>;tag=a6a1c5f60faecf035a1ae5b6e96e979a-cbaa
Call-ID: 1721341700 [!at] 172.25.25.88 (replace the [!at] with a @)
CSeq: 20 INVITE
Server: Sip EXpress router (0.9.6 (i386/linux))
Content-Length: 0
Warning: 392 172.25.25.84:5060 "Noisy feedback tells: pid=21691 req_src_ip=
172.25.25.88 req_src_port=5060 in_uri=sip:172.25.25.84:5060 out_uri=
sip:a@192.168.0.2:5060 via_cnt==0"
source=172.25.25.88:5060 to=172.25.25.84:5060
ACK sip:172.25.25.84:5060 SIP/2.0
Via: SIP/2.0/UDP 172.25.25.88:5060;rport;branch=z9hG4bK1784363542
Route: <sip:a@192.168.0.2:5060>
From: <sip:c@172.25.25.88>;tag=1669898773
To: <sip:a@192.168.0.2:5060>;tag=a6a1c5f60faecf035a1ae5b6e96e979a-cbaa
Call-ID: 1721341700 [!at] 172.25.25.88 (replace the [!at] with a @)
CSeq: 20 ACK
Content-Length: 0
---------------------------------------------------------------------------------------------------------------------------------------------
the SER configuration file is:
-----------------------------------------------------------------
#
# $Id: ser.cfg,v 1.25.2.1 2005/02/18 14:30:44 andrei Exp $
#
# simple quick-start config script
#
# ----------- global configuration parameters ------------------------
#debug=3 # debug level (cmd line: -dddddddddd)
#fork=yes
#log_stderror=no # (cmd line: -E)
/* Uncomment these lines to enter debugging mode
fork=no
log_stderror=yes
*/
check_via=no # (cmd. line: -v)
dns=no # (cmd. line: -r)
rev_dns=no # (cmd. line: -R)
#port=5060
#children=4
fifo="/tmp/ser_fifo"
# ------------------ module loading ----------------------------------
# Uncomment this if you want to use SQL database
#loadmodule "/usr/local/lib/ser/modules/mysql.so"
loadmodule "/usr/local/lib/ser/modules/sl.so"
loadmodule "/usr/local/lib/ser/modules/tm.so"
loadmodule "/usr/local/lib/ser/modules/rr.so"
loadmodule "/usr/local/lib/ser/modules/maxfwd.so"
loadmodule "/usr/local/lib/ser/modules/usrloc.so"
loadmodule "/usr/local/lib/ser/modules/registrar.so"
loadmodule "/usr/local/lib/ser/modules/textops.so"
# Uncomment this if you want digest authentication
# mysql.so must be loaded !
#loadmodule "/usr/local/lib/ser/modules/auth.so"
#loadmodule "/usr/local/lib/ser/modules/auth_db.so"
# ----------------- setting module-specific parameters ---------------
# -- usrloc params --
modparam("usrloc", "db_mode", 0)
# Uncomment this if you want to use SQL database
# for persistent storage and comment the previous line
#modparam("usrloc", "db_mode", 2)
# -- auth params --
# Uncomment if you are using auth module
#
#modparam("auth_db", "calculate_ha1", yes)
#
# If you set "calculate_ha1" parameter to yes (which true in this config),
# uncomment also the following parameter)
#
#modparam("auth_db", "password_column", "password")
# -- rr params --
# add value to ;lr param to make some broken UAs happy
modparam("rr", "enable_full_lr", 1)
# ------------------------- request routing logic -------------------
# main routing logic
route{
# initial sanity checks -- messages with
# max_forwards==0, or excessively long requests
if (!mf_process_maxfwd_header("10")) {
sl_send_reply("483","Too Many Hops");
break;
};
if (msg:len >= 2048 ) {
sl_send_reply("513", "Message too big");
break;
};
# we record-route all messages -- to make sure that
# subsequent messages will go through our proxy; that's
# particularly good if upstream and downstream entities
# use different transport protocol
if (!method=="REGISTER") record_route();
# subsequent messages withing a dialog should take the
# path determined by record-routing
if (loose_route()) {
# mark routing logic in request
append_hf("P-hint: rr-enforced\r\n");
route(1);
break;
};
if (!uri==myself) {
# mark routing logic in request
append_hf("P-hint: outbound\r\n");
route(1);
break;
};
# if the request is for other domain use UsrLoc
# (in case, it does not work, use the following command
# with proper names and addresses in it)
if (uri==myself) {
if (method=="REGISTER") {
# Uncomment this if you want to use digest authentication
# if (!www_authorize("iptel.org", "subscriber")) {
# www_challenge("iptel.org", "0");
# break;
# };
save("location");
break;
};
lookup("aliases");
if (!uri==myself) {
append_hf("P-hint: outbound alias\r\n");
route(1);
break;
};
# native SIP destinations are handled using our USRLOC DB
if (!lookup("location")) {
sl_send_reply("404", "Not Found");
break;
};
};
append_hf("P-hint: usrloc applied\r\n");
route(1);
}
route[1]
{
# send it out now; use stateful forwarding as it works reliably
# even for UDP2TCP
if (!t_relay()) {
sl_reply_error();
};
}
---------------------------------------------------------------
Please help me in this regard.
Asif