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OCS SRV Records issue

jumz

By jumz
in Microsoft OCS

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jumz Newbie

jumz

Posted
Posted

I have an issue where pbxnsip does not resolve the srv records correctly. I do not understand how it decides to use udp 66.135.59.238 5060 when I have no SRV record in my public dns that points to this!

 

[7] 2010/07/27 17:15:21: SIP Rx udp:172.31.255.149:5060: 
INVITE sip:48@172.31.255.29:5060 SIP/2.0
Via: SIP/2.0/UDP 172.31.255.149:5060;branch=z9hG4bK3511bfc26b58ba3f6.af640dfba1534ddfd
Max-Forwards: 70
From: "47" <sip:47@172.31.255.29:5060>;tag=c79951fecd
To: "48" <sip:48@172.31.255.29:5060>
Call-ID: 8cf3ae7f9ecf8b60
CSeq: 5846 INVITE
Allow: INVITE, ACK, CANCEL, BYE, NOTIFY, REFER, OPTIONS, UPDATE, PRACK, SUBSCRIBE, INFO
Allow-Events: talk, hold, conference, LocalModeStatus
Contact: "47" <sip:47@172.31.255.149:5060;transport=udp>;+sip.instance="<urn:uuid:00000000-0000-1000-8000-00085D23EDC4>"
Supported: gruu, path, timer, 100rel, replaces
User-Agent: Aastra 57i/2.5.2.1010
Content-Type: application/sdp
Content-Length: 287

v=0
o=MxSIP 0 0 IN IP4 172.31.255.149
s=SIP Call
c=IN IP4 172.31.255.149
t=0 0
m=audio 3000 RTP/AVP 0 8 18 101
a=rtpmap:0 PCMU/8000
a=rtpmap:8 PCMA/8000
a=rtpmap:18 G729/8000
a=rtpmap:101 telephone-event/8000
a=silenceSupp:off - - - -
a=fmtp:101 0-15
a=ptime:20
a=sendrecv

[9] 2010/07/27 17:15:21: UDP: Opening socket on 0.0.0.0:49674 
[9] 2010/07/27 17:15:21: UDP: Opening socket on 0.0.0.0:49675 
[9] 2010/07/27 17:15:21: UDP: Opening socket on [::]:49674 
[9] 2010/07/27 17:15:21: UDP: Opening socket on [::]:49675 
[8] 2010/07/27 17:15:21: Could not find a trunk (2 trunks) 
[9] 2010/07/27 17:15:21: Resolve 25: aaaa udp 172.31.255.149 5060 
[9] 2010/07/27 17:15:21: Resolve 25: a udp 172.31.255.149 5060 
[9] 2010/07/27 17:15:21: Resolve 25: udp 172.31.255.149 5060 
[7] 2010/07/27 17:15:21: SIP Tx udp:172.31.255.149:5060: 
SIP/2.0 100 Trying
Via: SIP/2.0/UDP 172.31.255.149:5060;branch=z9hG4bK3511bfc26b58ba3f6.af640dfba1534ddfd
From: "47" <sip:47@172.31.255.29:5060>;tag=c79951fecd
To: "48" <sip:48@172.31.255.29:5060>;tag=1275aa62e9
Call-ID: 8cf3ae7f9ecf8b60
CSeq: 5846 INVITE
Content-Length: 0


[9] 2010/07/27 17:15:21: Resolve 26: aaaa udp 172.31.255.149 5060 
[9] 2010/07/27 17:15:21: Resolve 26: a udp 172.31.255.149 5060 
[9] 2010/07/27 17:15:21: Resolve 26: udp 172.31.255.149 5060 
[7] 2010/07/27 17:15:21: SIP Tx udp:172.31.255.149:5060: 
SIP/2.0 401 Authentication Required
Via: SIP/2.0/UDP 172.31.255.149:5060;branch=z9hG4bK3511bfc26b58ba3f6.af640dfba1534ddfd
From: "47" <sip:47@172.31.255.29:5060>;tag=c79951fecd
To: "48" <sip:48@172.31.255.29:5060>;tag=1275aa62e9
Call-ID: 8cf3ae7f9ecf8b60
CSeq: 5846 INVITE
User-Agent: pbxnsip-PBX/4.0.1.3499
WWW-Authenticate: Digest realm="172.31.255.29",nonce="62c935252b1526263a7995602ad1556e",domain="sip:48@172.31.255.29:5060",algorithm=MD5
Content-Length: 0


[7] 2010/07/27 17:15:21: SIP Rx udp:172.31.255.149:5060: 
ACK sip:48@172.31.255.29:5060 SIP/2.0
Via: SIP/2.0/UDP 172.31.255.149:5060;branch=z9hG4bK3511bfc26b58ba3f6.af640dfba1534ddfd
Max-Forwards: 70
From: "47" <sip:47@172.31.255.29:5060>;tag=c79951fecd
To: "48" <sip:48@172.31.255.29:5060>;tag=1275aa62e9
Call-ID: 8cf3ae7f9ecf8b60
CSeq: 5846 ACK
User-Agent: Aastra 57i/2.5.2.1010
Content-Length: 0


[7] 2010/07/27 17:15:21: SIP Rx udp:172.31.255.149:5060: 
INVITE sip:48@172.31.255.29:5060 SIP/2.0
Via: SIP/2.0/UDP 172.31.255.149:5060;branch=z9hG4bKb3efd381255b960e6.63cc29c408c88244d
Max-Forwards: 70
From: "47" <sip:47@172.31.255.29:5060>;tag=c79951fecd
To: "48" <sip:48@172.31.255.29:5060>
Call-ID: 8cf3ae7f9ecf8b60
CSeq: 5847 INVITE
Allow: INVITE, ACK, CANCEL, BYE, NOTIFY, REFER, OPTIONS, UPDATE, PRACK, SUBSCRIBE, INFO
Allow-Events: talk, hold, conference, LocalModeStatus
Authorization: Digest username="47",realm="172.31.255.29",nonce="62c935252b1526263a7995602ad1556e",uri="sip:48@172.31.255.29:5060",response="d4d00e580a0a28f65b39aa15673f9b45",algorithm=MD5
Contact: "47" <sip:47@172.31.255.149:5060;transport=udp>;+sip.instance="<urn:uuid:00000000-0000-1000-8000-00085D23EDC4>"
Supported: gruu, path, timer, 100rel, replaces
User-Agent: Aastra 57i/2.5.2.1010
Content-Type: application/sdp
Content-Length: 287

v=0
o=MxSIP 0 0 IN IP4 172.31.255.149
s=SIP Call
c=IN IP4 172.31.255.149
t=0 0
m=audio 3000 RTP/AVP 0 8 18 101
a=rtpmap:0 PCMU/8000
a=rtpmap:8 PCMA/8000
a=rtpmap:18 G729/8000
a=rtpmap:101 telephone-event/8000
a=silenceSupp:off - - - -
a=fmtp:101 0-15
a=ptime:20
a=sendrecv

[8] 2010/07/27 17:15:21: Tagging request with existing tag 
[7] 2010/07/27 17:15:21: Set packet length to 20 
[6] 2010/07/27 17:15:21: Sending RTP for 8cf3ae7f9ecf8b60#1275aa62e9 to 172.31.255.149:3000 
[9] 2010/07/27 17:15:21: Resolve 27: aaaa udp 172.31.255.149 5060 
[9] 2010/07/27 17:15:21: Resolve 27: a udp 172.31.255.149 5060 
[9] 2010/07/27 17:15:21: Resolve 27: udp 172.31.255.149 5060 
[7] 2010/07/27 17:15:21: SIP Tx udp:172.31.255.149:5060: 
SIP/2.0 100 Trying
Via: SIP/2.0/UDP 172.31.255.149:5060;branch=z9hG4bKb3efd381255b960e6.63cc29c408c88244d
From: "47" <sip:47@172.31.255.29:5060>;tag=c79951fecd
To: "48" <sip:48@172.31.255.29:5060>;tag=1275aa62e9
Call-ID: 8cf3ae7f9ecf8b60
CSeq: 5847 INVITE
Content-Length: 0


[8] 2010/07/27 17:15:21: Call state for call object 2: idle 
[8] 2010/07/27 17:15:21: Call state for call object 2: alerting 
[8] 2010/07/27 17:15:21: Play audio_moh/noise.wav 
[9] 2010/07/27 17:15:21: UDP: Opening socket on 0.0.0.0:62168 
[9] 2010/07/27 17:15:21: UDP: Opening socket on 0.0.0.0:62169 
[9] 2010/07/27 17:15:21: UDP: Opening socket on [::]:62168 
[9] 2010/07/27 17:15:21: UDP: Opening socket on [::]:62169 
[9] 2010/07/27 17:15:21: Resolve 28: url sip:jameel@netsmart.ca 
[9] 2010/07/27 17:15:21: Resolve 28: naptr netsmart.ca 
[9] 2010/07/27 17:15:21: DNS: Request netsmart.ca from server 172.31.255.10 
[8] 2010/07/27 17:15:21: DNS: Add NAPTR netsmart.ca (ttl=60) 
[9] 2010/07/27 17:15:21: Resolve 28: naptr netsmart.ca 
[9] 2010/07/27 17:15:21: Resolve 28: srv tls _sips._tcp.netsmart.ca 
[9] 2010/07/27 17:15:21: DNS: Request _sips._tcp.netsmart.ca from server 172.31.255.10 
[8] 2010/07/27 17:15:21: DNS: Add SRV _sips._tcp.netsmart.ca (ttl=60) 
[9] 2010/07/27 17:15:21: Resolve 28: srv tls _sips._tcp.netsmart.ca 
[9] 2010/07/27 17:15:21: Resolve 28: srv tcp _sip._tcp.netsmart.ca 
[9] 2010/07/27 17:15:21: DNS: Request _sip._tcp.netsmart.ca from server 172.31.255.10 
[8] 2010/07/27 17:15:21: DNS: Add SRV _sip._tcp.netsmart.ca (ttl=60) 
[9] 2010/07/27 17:15:21: Resolve 28: srv tcp _sip._tcp.netsmart.ca 
[9] 2010/07/27 17:15:21: Resolve 28: srv udp _sip._udp.netsmart.ca 
[9] 2010/07/27 17:15:21: DNS: Request _sip._udp.netsmart.ca from server 172.31.255.10 
[8] 2010/07/27 17:15:21: DNS: Add SRV _sip._udp.netsmart.ca (ttl=60) 
[9] 2010/07/27 17:15:21: Resolve 28: srv udp _sip._udp.netsmart.ca 
[9] 2010/07/27 17:15:21: Resolve 28: aaaa udp netsmart.ca 5060 
[9] 2010/07/27 17:15:21: DNS: Request netsmart.ca from server 172.31.255.10 
[8] 2010/07/27 17:15:21: DNS: Add AAAA netsmart.ca (ttl=60) 
[9] 2010/07/27 17:15:21: Resolve 28: aaaa udp netsmart.ca 5060 
[9] 2010/07/27 17:15:21: Resolve 28: a udp netsmart.ca 5060 
[9] 2010/07/27 17:15:21: Resolve 28: udp 66.135.59.238 5060 
[7] 2010/07/27 17:15:21: SIP Tx udp:66.135.59.238:5060:

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Vodia PBX Grand Master

Vodia PBX

Posted
Posted

When I try to resolve the address manually I get the same:

 

$ host -t NAPTR netsmart.ca
$ host -t SRV _sips._tcp.netsmart.ca
Host _sips._tcp.netsmart.ca not found: 3(NXDOMAIN)
$ host -t SRV _sip._tcp.netsmart.ca
Host _sip._tcp.netsmart.ca not found: 3(NXDOMAIN)
$ host -t SRV _sip._udp.netsmart.ca
Host _sip._udp.netsmart.ca not found: 3(NXDOMAIN)
$ host -t AAAA netsmart.ca
$ host -t A netsmart.ca
netsmart.ca has address 66.135.59.238
netsmart.ca mail is handled by 10 mail.netsmart.ca.

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Vodia PBX Grand Master

Vodia PBX

Posted
Posted
but those records do exist, but instead, it is resolving simply the .netsmart.ca domain

 

Whow, not it suddenly works for me:

 

$ host -t SRV _sip._tcp.netsmart.ca
_sip._tcp.netsmart.ca has SRV record 10 10 5060 ocs.netsmart.ca.

 

Maybe it took a while until the DNS rippled through the system!

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