[Kamailio-Users] [OpenSER-Users] Firewall

Daniel-Constantin Mierla miconda at gmail.com
Thu Jul 31 08:11:20 CEST 2008


I am not expert in firewalls and don't use media proxy, but such case 
should be easy to troubleshoot with some network sniffer and stat. Run 
tools like netstat to see the ports applications listen to, the sniffer 
to see attempts for connections and relax firewall rules to permit that 
communication.

Cheers,
Daniel


On 07/24/08 11:16, CSB wrote:
>
> I have an error which is driving me crazy:
>
> Jul 24 16:58:34 beta /sbin/openser[5446]: ERROR:core:udp_send: 
> sendto(sock,0x81aaed8,825,0,0xb61216f0,16): Operation not permitted(1)
>
> Jul 24 16:58:34 beta /sbin/openser[5446]: ERROR:tm:msg_send: udp_send 
> failed
>
> This is firewall related because when I turn iptables off the problem 
> goes away. But although all ACCEPT and DENY messages are logged by the 
> firewall, there is no corresponding message logged.
>
> When a call is made between two UACs and the far end attempts to 
> answer the call, the call is not answered successfully. The dialogue 
> is shown below.
>
> If I turn the firewall off, start a call and then turn the firewall on 
> the call continues successfully. However the next call is not 
> successful. We use Mediaproxy and I suspect that is trying to do some 
> communication that is being blocked by the firewall but that is only a 
> suspicion. The dialogue for this call is shown at the bottom.
>
> When comparing these two dialogues with the firewall turned on:
>
> - when the callee answers, OpenSER receives a 200 OK but doesn’t 
> immediately pass that on to the caller
>
> - after a number of 200 messages from the callee, OpenSER sends the 
> 200 to the caller but the Contact is the private IP address whereas 
> when the firewall is turned off it is the public IP address
>
> I have also included the iptables config. Note that some lines are 
> commented out due to the testing I’m doing and IP addresses have been 
> changed.
>
> Any advice on the changes required would be appreciated.
>
> Thanks
>
> ****************************
>
> SIP dialogue with firewall on
>
> U 58.28.001.001:5060 -> 147.202.001.001:5060INVITE 
> sip:44556644 at domain.com:5060;user=phone SIP/2.0..Via: SIP/2.0/UDP 
> 192.168.1.102;branch=z9hG4bK31ee9ba27B17140D..From: "CSB" 
> <sip:44556648 at domain.com>;tag=566CA8D1-4C8E0458..To: 
> <sip:44556644 at domain.com;user=phone>..CSeq: 1 INVITE..Call-ID: 
> 7f806604-ea80e337-e14b8216 at 192.168.1.102..Contact: 
> <sip:44556648 at 192.168.1.102>..Allow: INVITE, ACK, BYE, CANCEL, 
> OPTIONS, INFO, MESSAGE, SUBSCRIBE, NOTIFY, PRACK, UPDATE, 
> REFER..User-Agent: 
> PolycomSoundPointIP-SPIP_320-UA/2.1.1.0037..Supported: 
> 100rel,replaces..Allow-Events: talk,hold,conference..Max-Forwards: 
> 70..Content-Type: application/sdp..Content-Length: 251....v=0..o=- 
> 1216790239 1216790239 IN IP4 192.168.1.102..s=Polycom IP Phone..c=IN 
> IP4 192.168.1.102..t=0 0..m=audio 2222 RTP/AVP 0 8 18 
> 101..a=sendrecv..a=rtpmap:0 PCMU/8000..a=rtpmap:8 
> PCMA/8000..a=rtpmap:18 G729/8000..a=rtpmap:101 telephone-event/8000..
>
> U 147.202.001.001:5060 -> 58.28.001.001:5060SIP/2.0 100 Giving a 
> try..Via: SIP/2.0/UDP 
> 192.168.1.102;branch=z9hG4bK31ee9ba27B17140D;rport=5060;received=58.28.001.001..From: 
> "CSB" <sip:44556648 at domain.com>;tag=566CA8D1-4C8E0458..To: 
> <sip:44556644 at domain.com;user=phone>..CSeq: 1 INVITE..Call-ID: 
> 7f806604-ea80e337-e14b8216 at 192.168.1.102..Server: OpenSER (1.3.2-notls 
> (i386/linux))..Content-Length: 0....
>
> U 147.202.001.001:5060 -> 58.28.001.001:5065INVITE 
> sip:44556644 at 192.168.1.124:5065 SIP/2.0..Record-Route: 
> <sip:147.202.001.001:5060;nat=yes;ftag=566CA8D1-4C8E0458;lr=on>..Via: 
> SIP/2.0/UDP 147.202.001.001;branch=z9hG4bK07da.73971d95.0..Via: 
> SIP/2.0/UDP 
> 192.168.1.102;rport=5060;received=58.28.001.001;branch=z9hG4bK31ee9ba27B17140D..From: 
> "CSB" <sip:44556648 at domain.com>;tag=566CA8D1-4C8E0458..To: 
> <sip:44556644 at domain.com;user=phone>..CSeq: 1 INVITE..Call-ID: 
> 7f806604-ea80e337-e14b8216 at 192.168.1.102..Contact: 
> <sip:44556648 at 58.28.001.001:5060>..Allow: INVITE, ACK, BYE, CANCEL, 
> OPTIONS, INFO, MESSAGE, SUBSCRIBE, NOTIFY, PRACK, UPDATE, 
> REFER..User-Agent: 
> PolycomSoundPointIP-SPIP_320-UA/2.1.1.0037..Supported: 
> 100rel,replaces..Allow-Events: talk,hold,conference..Max-Forwards: 
> 69..Content-Type: application/sdp..Content-Length: 253....v=0..o=- 
> 1216790239 1216790239 IN IP4 192.168.1.102..s=Polycom IP Phone..c=IN 
> IP4 147.202.001.001..t=0 0..m=audio 35982 RTP/AVP 0 8 18 
> 101..a=sendrecv..a=rtpmap:0 PCMU/8000..a=rtpmap:8 
> PCMA/8000..a=rtpmap:18 G729/8000..a=rtpmap:101 telephone-event/8000..
>
> U 58.28.001.001:5065 -> 147.202.001.001:5060SIP/2.0 100 Trying..To: 
> <sip:44556644 at domain.com;user=phone>..From: "CSB" 
> <sip:44556648 at domain.com>;tag=566CA8D1-4C8E0458..Call-ID: 
> 7f806604-ea80e337-e14b8216 at 192.168.1.102..CSeq: 1 INVITE..Via: 
> SIP/2.0/UDP 147.202.001.001;branch=z9hG4bK07da.73971d95.0..Via: 
> SIP/2.0/UDP 
> 192.168.1.102;rport=5060;received=58.28.001.001;branch=z9hG4bK31ee9ba27B17140D..Record-Route: 
> <sip:147.202.001.001:5060;nat=yes;ftag=566CA8D1-4C8E0458;lr=on>..Server: 
> Linksys/SPA962-5.1.18(SC)..Content-Length: 0....
>
> U 58.28.001.001:5065 -> 147.202.001.001:5060SIP/2.0 180 Ringing..To: 
> <sip:44556644 at domain.com;user=phone>;tag=e07209dc8d8de14fi5..From: 
> "CSB" <sip:44556648 at domain.com>;tag=566CA8D1-4C8E0458..Call-ID: 
> 7f806604-ea80e337-e14b8216 at 192.168.1.102..CSeq: 1 INVITE..Via: 
> SIP/2.0/UDP 147.202.001.001;branch=z9hG4bK07da.73971d95.0..Via: 
> SIP/2.0/UDP 
> 192.168.1.102;rport=5060;received=58.28.001.001;branch=z9hG4bK31ee9ba27B17140D..Record-Route: 
> <sip:147.202.001.001:5060;nat=yes;ftag=566CA8D1-4C8E0458;lr=on>..Server: 
> Linksys/SPA962-5.1.18(SC)..Content-Length: 0....
>
> U 147.202.001.001:5060 -> 58.28.001.001:5060SIP/2.0 180 Ringing..To: 
> <sip:44556644 at domain.com;user=phone>;tag=e07209dc8d8de14fi5..From: 
> "CSB" <sip:44556648 at domain.com>;tag=566CA8D1-4C8E0458..Call-ID: 
> 7f806604-ea80e337-e14b8216 at 192.168.1.102..CSeq: 1 INVITE..Via: 
> SIP/2.0/UDP 
> 192.168.1.102;rport=5060;received=58.28.001.001;branch=z9hG4bK31ee9ba27B17140D..Record-Route: 
> <sip:147.202.001.001:5060;nat=yes;ftag=566CA8D1-4C8E0458;lr=on>..Server: 
> Linksys/SPA962-5.1.18(SC)..Content-Length: 0....
>
> U 58.28.001.001:5065 -> 147.202.001.001:5060SIP/2.0 200 OK..To: 
> <sip:44556644 at domain.com;user=phone>;tag=e07209dc8d8de14fi5..From: 
> "CSB" <sip:44556648 at domain.com>;tag=566CA8D1-4C8E0458..Call-ID: 
> 7f806604-ea80e337-e14b8216 at 192.168.1.102..CSeq: 1 INVITE..Via: 
> SIP/2.0/UDP 147.202.001.001;branch=z9hG4bK07da.73971d95.0..Via: 
> SIP/2.0/UDP 
> 192.168.1.102;rport=5060;received=58.28.001.001;branch=z9hG4bK31ee9ba27B17140D..Record-Route: 
> <sip:147.202.001.001:5060;nat=yes;ftag=566CA8D1-4C8E0458;lr=on>..Contact: 
> <sip:44556644 at 192.168.1.124:5065>..Server: 
> Linksys/SPA962-5.1.18(SC)..Content-Length: 208..Allow: ACK, BYE, 
> CANCEL, INFO, INVITE, NOTIFY, OPTIONS, REFER..Supported: 
> replaces..Content-Type: application/sdp....v=0..o=- 298748 298748 IN 
> IP4 192.168.1.124..s=-..c=IN IP4 192.168.1.124..t=0 0..m=audio 16424 
> RTP/AVP 0 101..a=rtpmap:0 PCMU/8000..a=rtpmap:101 
> telephone-event/8000..a=fmtp:101 0-15..a=ptime:30..a=sendrecv..
>
> U 58.28.001.001:5065 -> 147.202.001.001:5060SIP/2.0 200 OK..To: 
> <sip:44556644 at domain.com;user=phone>;tag=e07209dc8d8de14fi5..From: 
> "CSB" <sip:44556648 at domain.com>;tag=566CA8D1-4C8E0458..Call-ID: 
> 7f806604-ea80e337-e14b8216 at 192.168.1.102..CSeq: 1 INVITE..Via: 
> SIP/2.0/UDP 147.202.001.001;branch=z9hG4bK07da.73971d95.0..Via: 
> SIP/2.0/UDP 
> 192.168.1.102;rport=5060;received=58.28.001.001;branch=z9hG4bK31ee9ba27B17140D..Record-Route: 
> <sip:147.202.001.001:5060;nat=yes;ftag=566CA8D1-4C8E0458;lr=on>..Contact: 
> <sip:44556644 at 192.168.1.124:5065>..Server: 
> Linksys/SPA962-5.1.18(SC)..Content-Length: 208..Allow: ACK, BYE, 
> CANCEL, INFO, INVITE, NOTIFY, OPTIONS, REFER..Supported: 
> replaces..Content-Type: application/sdp....v=0..o=- 298748 298748 IN 
> IP4 192.168.1.124..s=-..c=IN IP4 192.168.1.124..t=0 0..m=audio 16424 
> RTP/AVP 0 101..a=rtpmap:0 PCMU/8000..a=rtpmap:101 
> telephone-event/8000..a=fmtp:101 0-15..a=ptime:30..a=sendrecv..
>
> U 58.28.001.001:5065 -> 147.202.001.001:5060SIP/2.0 200 OK..To: 
> <sip:44556644 at domain.com;user=phone>;tag=e07209dc8d8de14fi5..From: 
> "CSB" <sip:44556648 at domain.com>;tag=566CA8D1-4C8E0458..Call-ID: 
> 7f806604-ea80e337-e14b8216 at 192.168.1.102..CSeq: 1 INVITE..Via: 
> SIP/2.0/UDP 147.202.001.001;branch=z9hG4bK07da.73971d95.0..Via: 
> SIP/2.0/UDP 
> 192.168.1.102;rport=5060;received=58.28.001.001;branch=z9hG4bK31ee9ba27B17140D..Record-Route: 
> <sip:147.202.001.001:5060;nat=yes;ftag=566CA8D1-4C8E0458;lr=on>..Contact: 
> <sip:44556644 at 192.168.1.124:5065>..Server: 
> Linksys/SPA962-5.1.18(SC)..Content-Length: 208..Allow: ACK, BYE, 
> CANCEL, INFO, INVITE, NOTIFY, OPTIONS, REFER..Supported: 
> replaces..Content-Type: application/sdp....v=0..o=- 298748 298748 IN 
> IP4 192.168.1.124..s=-..c=IN IP4 192.168.1.124..t=0 0..m=audio 16424 
> RTP/AVP 0 101..a=rtpmap:0 PCMU/8000..a=rtpmap:101 
> telephone-event/8000..a=fmtp:101 0-15..a=ptime:30..a=sendrecv..
>
> U 58.28.001.001:5065 -> 147.202.001.001:5060SIP/2.0 200 OK..To: 
> <sip:44556644 at domain.com;user=phone>;tag=e07209dc8d8de14fi5..From: 
> "CSB" <sip:44556648 at domain.com>;tag=566CA8D1-4C8E0458..Call-ID: 
> 7f806604-ea80e337-e14b8216 at 192.168.1.102..CSeq: 1 INVITE..Via: 
> SIP/2.0/UDP 147.202.001.001;branch=z9hG4bK07da.73971d95.0..Via: 
> SIP/2.0/UDP 
> 192.168.1.102;rport=5060;received=58.28.001.001;branch=z9hG4bK31ee9ba27B17140D..Record-Route: 
> <sip:147.202.001.001:5060;nat=yes;ftag=566CA8D1-4C8E0458;lr=on>..Contact: 
> <sip:44556644 at 192.168.1.124:5065>..Server: 
> Linksys/SPA962-5.1.18(SC)..Content-Length: 208..Allow: ACK, BYE, 
> CANCEL, INFO, INVITE, NOTIFY, OPTIONS, REFER..Supported: 
> replaces..Content-Type: application/sdp....v=0..o=- 298748 298748 IN 
> IP4 192.168.1.124..s=-..c=IN IP4 192.168.1.124..t=0 0..m=audio 16424 
> RTP/AVP 0 101..a=rtpmap:0 PCMU/8000..a=rtpmap:101 
> telephone-event/8000..a=fmtp:101 0-15..a=ptime:30..a=sendrecv..
>
> U 58.28.001.001:5065 -> 147.202.001.001:5060SIP/2.0 200 OK..To: 
> <sip:44556644 at domain.com;user=phone>;tag=e07209dc8d8de14fi5..From: 
> "CSB" <sip:44556648 at domain.com>;tag=566CA8D1-4C8E0458..Call-ID: 
> 7f806604-ea80e337-e14b8216 at 192.168.1.102..CSeq: 1 INVITE..Via: 
> SIP/2.0/UDP 147.202.001.001;branch=z9hG4bK07da.73971d95.0..Via: 
> SIP/2.0/UDP 
> 192.168.1.102;rport=5060;received=58.28.001.001;branch=z9hG4bK31ee9ba27B17140D..Record-Route: 
> <sip:147.202.001.001:5060;nat=yes;ftag=566CA8D1-4C8E0458;lr=on>..Contact: 
> <sip:44556644 at 192.168.1.124:5065>..Server: 
> Linksys/SPA962-5.1.18(SC)..Content-Length: 208..Allow: ACK, BYE, 
> CANCEL, INFO, INVITE, NOTIFY, OPTIONS, REFER..Supported: 
> replaces..Content-Type: application/sdp....v=0..o=- 298748 298748 IN 
> IP4 192.168.1.124..s=-..c=IN IP4 192.168.1.124..t=0 0..m=audio 16424 
> RTP/AVP 0 101..a=rtpmap:0 PCMU/8000..a=rtpmap:101 
> telephone-event/8000..a=fmtp:101 0-15..a=ptime:30..a=sendrecv..
>
> U 147.202.001.001:5060 -> 58.28.001.001:5060SIP/2.0 200 OK..To: 
> <sip:44556644 at domain.com;user=phone>;tag=e07209dc8d8de14fi5..From: 
> "CSB" <sip:44556648 at domain.com>;tag=566CA8D1-4C8E0458..Call-ID: 
> 7f806604-ea80e337-e14b8216 at 192.168.1.102..CSeq: 1 INVITE..Via: 
> SIP/2.0/UDP 
> 192.168.1.102;rport=5060;received=58.28.001.001;branch=z9hG4bK31ee9ba27B17140D..Record-Route: 
> <sip:147.202.001.001:5060;nat=yes;ftag=566CA8D1-4C8E0458;lr=on>..Contact: 
> <sip:44556644 at 192.168.1.124:5065>..Server: 
> Linksys/SPA962-5.1.18(SC)..Content-Length: 208..Allow: ACK, BYE, 
> CANCEL, INFO, INVITE, NOTIFY, OPTIONS, REFER..Supported: 
> replaces..Content-Type: application/sdp....v=0..o=- 298748 298748 IN 
> IP4 192.168.1.124..s=-..c=IN IP4 192.168.1.124..t=0 0..m=audio 16424 
> RTP/AVP 0 101..a=rtpmap:0 PCMU/8000..a=rtpmap:101 
> telephone-event/8000..a=fmtp:101 0-15..a=ptime:30..a=sendrecv..
>
> U 58.28.001.001:5060 -> 147.202.001.001:5060ACK 
> sip:44556644 at 192.168.1.124:5065 SIP/2.0..Via: SIP/2.0/UDP 
> 192.168.1.102;branch=z9hG4bK4b4d0d4aF803AD55..From: "CSB" 
> <sip:44556648 at domain.com>;tag=566CA8D1-4C8E0458..To: 
> <sip:44556644 at domain.com;user=phone>;tag=e07209dc8d8de14fi5..Route: 
> <sip:147.202.001.001:5060;nat=yes;ftag=566CA8D1-4C8E0458;lr=on>..CSeq: 
> 1 ACK..Call-ID: 7f806604-ea80e337-e14b8216 at 192.168.1.102..Contact: 
> <sip:44556648 at 192.168.1.102>..Allow: INVITE, ACK, BYE, CANCEL, 
> OPTIONS, INFO, MESSAGE, SUBSCRIBE, NOTIFY, PRACK, UPDATE, 
> REFER..User-Agent: 
> PolycomSoundPointIP-SPIP_320-UA/2.1.1.0037..Max-Forwards: 
> 70..Content-Length: 0....
>
> U 147.202.001.001:5060 -> 192.168.1.124:5065ACK 
> sip:44556644 at 192.168.1.124:5065 SIP/2.0..Record-Route: 
> <sip:147.202.001.001;lr=on;ftag=566CA8D1-4C8E0458>..Via: SIP/2.0/UDP 
> 147.202.001.001;branch=z9hG4bK4b4d0d4aF803AD55..Via: SIP/2.0/UDP 
> 192.168.1.102;received=58.28.001.001;branch=z9hG4bK4b4d0d4aF803AD55..From: 
> "CSB" <sip:44556648 at domain.com>;tag=566CA8D1-4C8E0458..To: 
> <sip:44556644 at domain.com;user=phone>;tag=e07209dc8d8de14fi5..CSeq: 1 
> ACK..Call-ID: 7f806604-ea80e337-e14b8216 at 192.168.1.102..Contact: 
> <sip:44556648 at 192.168.1.102>..Allow: INVITE, ACK, BYE, CANCEL, 
> OPTIONS, INFO, MESSAGE, SUBSCRIBE, NOTIFY, PRACK, UPDATE, 
> REFER..User-Agent: 
> PolycomSoundPointIP-SPIP_320-UA/2.1.1.0037..Max-Forwards: 
> 69..Content-Length: 0....
>
> U 58.28.001.001:5065 -> 147.202.001.001:5060SIP/2.0 200 OK..To: 
> <sip:44556644 at domain.com;user=phone>;tag=e07209dc8d8de14fi5..From: 
> "CSB" <sip:44556648 at domain.com>;tag=566CA8D1-4C8E0458..Call-ID: 
> 7f806604-ea80e337-e14b8216 at 192.168.1.102..CSeq: 1 INVITE..Via: 
> SIP/2.0/UDP 147.202.001.001;branch=z9hG4bK07da.73971d95.0..Via: 
> SIP/2.0/UDP 
> 192.168.1.102;rport=5060;received=58.28.001.001;branch=z9hG4bK31ee9ba27B17140D..Record-Route: 
> <sip:147.202.001.001:5060;nat=yes;ftag=566CA8D1-4C8E0458;lr=on>..Contact: 
> <sip:44556644 at 192.168.1.124:5065>..Server: 
> Linksys/SPA962-5.1.18(SC)..Content-Length: 208..Allow: ACK, BYE, 
> CANCEL, INFO, INVITE, NOTIFY, OPTIONS, REFER..Supported: 
> replaces..Content-Type: application/sdp....v=0..o=- 298748 298748 IN 
> IP4 192.168.1.124..s=-..c=IN IP4 192.168.1.124..t=0 0..m=audio 16424 
> RTP/AVP 0 101..a=rtpmap:0 PCMU/8000..a=rtpmap:101 
> telephone-event/8000..a=fmtp:101 0-15..a=ptime:30..a=sendrecv..
>
> U 147.202.001.001:5060 -> 58.28.001.001:5060SIP/2.0 200 OK..To: 
> <sip:44556644 at domain.com;user=phone>;tag=e07209dc8d8de14fi5..From: 
> "CSB" <sip:44556648 at domain.com>;tag=566CA8D1-4C8E0458..Call-ID: 
> 7f806604-ea80e337-e14b8216 at 192.168.1.102..CSeq: 1 INVITE..Via: 
> SIP/2.0/UDP 
> 192.168.1.102;rport=5060;received=58.28.001.001;branch=z9hG4bK31ee9ba27B17140D..Record-Route: 
> <sip:147.202.001.001:5060;nat=yes;ftag=566CA8D1-4C8E0458;lr=on>..Contact: 
> <sip:44556644 at 192.168.1.124:5065>..Server: 
> Linksys/SPA962-5.1.18(SC)..Content-Length: 208..Allow: ACK, BYE, 
> CANCEL, INFO, INVITE, NOTIFY, OPTIONS, REFER..Supported: 
> replaces..Content-Type: application/sdp....v=0..o=- 298748 298748 IN 
> IP4 192.168.1.124..s=-..c=IN IP4 192.168.1.124..t=0 0..m=audio 16424 
> RTP/AVP 0 101..a=rtpmap:0 PCMU/8000..a=rtpmap:101 
> telephone-event/8000..a=fmtp:101 0-15..a=ptime:30..a=sendrecv..
>
> U 58.28.001.001:5065 -> 147.202.001.001:5060SIP/2.0 200 OK..To: 
> <sip:44556644 at domain.com;user=phone>;tag=e07209dc8d8de14fi5..From: 
> "CSB" <sip:44556648 at domain.com>;tag=566CA8D1-4C8E0458..Call-ID: 
> 7f806604-ea80e337-e14b8216 at 192.168.1.102..CSeq: 1 INVITE..Via: 
> SIP/2.0/UDP 147.202.001.001;branch=z9hG4bK07da.73971d95.0..Via: 
> SIP/2.0/UDP 
> 192.168.1.102;rport=5060;received=58.28.001.001;branch=z9hG4bK31ee9ba27B17140D..Record-Route: 
> <sip:147.202.001.001:5060;nat=yes;ftag=566CA8D1-4C8E0458;lr=on>..Contact: 
> <sip:44556644 at 192.168.1.124:5065>..Server: 
> Linksys/SPA962-5.1.18(SC)..Content-Length: 208..Allow: ACK, BYE, 
> CANCEL, INFO, INVITE, NOTIFY, OPTIONS, REFER..Supported: 
> replaces..Content-Type: application/sdp....v=0..o=- 298748 298748 IN 
> IP4 192.168.1.124..s=-..c=IN IP4 192.168.1.124..t=0 0..m=audio 16424 
> RTP/AVP 0 101..a=rtpmap:0 PCMU/8000..a=rtpmap:101 
> telephone-event/8000..a=fmtp:101 0-15..a=ptime:30..a=sendrecv..
>
> U 147.202.001.001:5060 -> 58.28.001.001:5060SIP/2.0 200 OK..To: 
> <sip:44556644 at domain.com;user=phone>;tag=e07209dc8d8de14fi5..From: 
> "CSB" <sip:44556648 at domain.com>;tag=566CA8D1-4C8E0458..Call-ID: 
> 7f806604-ea80e337-e14b8216 at 192.168.1.102..CSeq: 1 INVITE..Via: 
> SIP/2.0/UDP 
> 192.168.1.102;rport=5060;received=58.28.001.001;branch=z9hG4bK31ee9ba27B17140D..Record-Route: 
> <sip:147.202.001.001:5060;nat=yes;ftag=566CA8D1-4C8E0458;lr=on>..Contact: 
> <sip:44556644 at 192.168.1.124:5065>..Server: 
> Linksys/SPA962-5.1.18(SC)..Content-Length: 208..Allow: ACK, BYE, 
> CANCEL, INFO, INVITE, NOTIFY, OPTIONS, REFER..Supported: 
> replaces..Content-Type: application/sdp....v=0..o=- 298748 298748 IN 
> IP4 192.168.1.124..s=-..c=IN IP4 192.168.1.124..t=0 0..m=audio 16424 
> RTP/AVP 0 101..a=rtpmap:0 PCMU/8000..a=rtpmap:101 
> telephone-event/8000..a=fmtp:101 0-15..a=ptime:30..a=sendrecv..
>
> U 58.28.001.001:5065 -> 147.202.001.001:5060BYE 
> sip:44556648 at 58.28.001.001:5060 SIP/2.0..Via: SIP/2.0/UDP 
> 192.168.1.124:5065;branch=z9hG4bK-947b0ac7..From: 
> <sip:44556644 at domain.com;user=phone>;tag=e07209dc8d8de14fi5..To: "CSB" 
> <sip:44556648 at domain.com>;tag=566CA8D1-4C8E0458..Call-ID: 
> 7f806604-ea80e337-e14b8216 at 192.168.1.102..CSeq: 101 BYE..Max-Forwards: 
> 70..Route: 
> <sip:147.202.001.001:5060;nat=yes;ftag=566CA8D1-4C8E0458;lr=on>..User-Agent: 
> Linksys/SPA962-5.1.18(SC)..Content-Length: 0....
>
> U 147.202.001.001:5060 -> 58.28.001.001:5060BYE 
> sip:44556648 at 58.28.001.001:5060 SIP/2.0..Record-Route: 
> <sip:147.202.001.001;lr=on;ftag=e07209dc8d8de14fi5>..Via: SIP/2.0/UDP 
> 147.202.001.001;branch=z9hG4bKc0cc.a198b237.0..Via: SIP/2.0/UDP 
> 192.168.1.124:5065;received=58.28.001.001;branch=z9hG4bK-947b0ac7..From: 
> <sip:44556644 at domain.com;user=phone>;tag=e07209dc8d8de14fi5..To: "CSB" 
> <sip:44556648 at domain.com>;tag=566CA8D1-4C8E0458..Call-ID: 
> 7f806604-ea80e337-e14b8216 at 192.168.1.102..CSeq: 101 BYE..Max-Forwards: 
> 69..User-Agent: Linksys/SPA962-5.1.18(SC)..Content-Length: 0....
>
> U 58.28.001.001:5060 -> 147.202.001.001:5060SIP/2.0 200 OK..Via: 
> SIP/2.0/UDP 147.202.001.001;branch=z9hG4bKc0cc.a198b237.0..Via: 
> SIP/2.0/UDP 
> 192.168.1.124:5065;received=58.28.001.001;branch=z9hG4bK-947b0ac7..From: 
> <sip:44556644 at domain.com;user=phone>;tag=e07209dc8d8de14fi5..To: "CSB" 
> <sip:44556648 at domain.com>;tag=566CA8D1-4C8E0458..CSeq: 101 
> BYE..Call-ID: 7f806604-ea80e337-e14b8216 at 192.168.1.102..Contact: 
> <sip:44556648 at 192.168.1.102>..Record-Route: 
> <sip:147.202.001.001;lr=on;ftag=e07209dc8d8de14fi5>..User-Agent: 
> PolycomSoundPointIP-SPIP_320-UA/2.1.1.0037..Content-Length: 0....
>
> U 147.202.001.001:5060 -> 58.28.001.001:5065SIP/2.0 200 OK..Via: 
> SIP/2.0/UDP 
> 192.168.1.124:5065;received=58.28.001.001;branch=z9hG4bK-947b0ac7..From: 
> <sip:44556644 at domain.com;user=phone>;tag=e07209dc8d8de14fi5..To: "CSB" 
> <sip:44556648 at domain.com>;tag=566CA8D1-4C8E0458..CSeq: 101 
> BYE..Call-ID: 7f806604-ea80e337-e14b8216 at 192.168.1.102..Contact: 
> <sip:44556648 at 58.28.001.001:5060>..Record-Route: 
> <sip:147.202.001.001;lr=on;ftag=e07209dc8d8de14fi5>..User-Agent: 
> PolycomSoundPointIP-SPIP_320-UA/2.1.1.0037..Content-Length: 0....
>
> U 58.28.001.001:5065 -> 147.202.001.001:5060BYE 
> sip:44556648 at 58.28.001.001:5060 SIP/2.0..Via: SIP/2.0/UDP 
> 192.168.1.124:5065;branch=z9hG4bK-947b0ac7..From: 
> <sip:44556644 at domain.com;user=phone>;tag=e07209dc8d8de14fi5..To: "CSB" 
> <sip:44556648 at domain.com>;tag=566CA8D1-4C8E0458..Call-ID: 
> 7f806604-ea80e337-e14b8216 at 192.168.1.102..CSeq: 101 BYE..Max-Forwards: 
> 70..Route: 
> <sip:147.202.001.001:5060;nat=yes;ftag=566CA8D1-4C8E0458;lr=on>..User-Agent: 
> Linksys/SPA962-5.1.18(SC)..Content-Length: 0....
>
> U 147.202.001.001:5060 -> 58.28.001.001:5065SIP/2.0 200 OK..Via: 
> SIP/2.0/UDP 
> 192.168.1.124:5065;received=58.28.001.001;branch=z9hG4bK-947b0ac7..From: 
> <sip:44556644 at domain.com;user=phone>;tag=e07209dc8d8de14fi5..To: "CSB" 
> <sip:44556648 at domain.com>;tag=566CA8D1-4C8E0458..CSeq: 101 
> BYE..Call-ID: 7f806604-ea80e337-e14b8216 at 192.168.1.102..Contact: 
> <sip:44556648 at 58.28.001.001:5060>..Record-Route: 
> <sip:147.202.001.001;lr=on;ftag=e07209dc8d8de14fi5>..User-Agent: 
> PolycomSoundPointIP-SPIP_320-UA/2.1.1.0037..Content-Length: 0....
>
> **************************************
>
> SIP dialogue with Firewall off
>
> U 58.28.001.001:5060 -> 147.202.001.001:5060INVITE 
> sip:44556644 at domain.com:5060;user=phone SIP/2.0..Via: SIP/2.0/UDP 
> 192.168.1.102;branch=z9hG4bKca52e47AD4AD366..From: "CSB" 
> <sip:44556648 at domain.com>;tag=3D7BF99A-F3B3ACE5..To: 
> <sip:44556644 at domain.com;user=phone>..CSeq: 1 INVITE..Call-ID: 
> 26e8c161-7e674928-90cba56b at 192.168.1.102..Contact: 
> <sip:44556648 at 192.168.1.102>..Allow: INVITE, ACK, BYE, CANCEL, 
> OPTIONS, INFO, MESSAGE, SUBSCRIBE, NOTIFY, PRACK, UPDATE, 
> REFER..User-Agent: 
> PolycomSoundPointIP-SPIP_320-UA/2.1.1.0037..Supported: 
> 100rel,replaces..Allow-Events: talk,hold,conference..Max-Forwards: 
> 70..Content-Type: application/sdp..Content-Length: 251....v=0..o=- 
> 1216790431 1216790431 IN IP4 192.168.1.102..s=Polycom IP Phone..c=IN 
> IP4 192.168.1.102..t=0 0..m=audio 2224 RTP/AVP 0 8 18 
> 101..a=sendrecv..a=rtpmap:0 PCMU/8000..a=rtpmap:8 
> PCMA/8000..a=rtpmap:18 G729/8000..a=rtpmap:101 telephone-event/8000..
>
> U 147.202.001.001:5060 -> 58.28.001.001:5060SIP/2.0 100 Giving a 
> try..Via: SIP/2.0/UDP 
> 192.168.1.102;branch=z9hG4bKca52e47AD4AD366;rport=5060;received=58.28.001.001..From: 
> "CSB" <sip:44556648 at domain.com>;tag=3D7BF99A-F3B3ACE5..To: 
> <sip:44556644 at domain.com;user=phone>..CSeq: 1 INVITE..Call-ID: 
> 26e8c161-7e674928-90cba56b at 192.168.1.102..Server: OpenSER (1.3.2-notls 
> (i386/linux))..Content-Length: 0....
>
> U 147.202.001.001:5060 -> 58.28.001.001:5065INVITE 
> sip:44556644 at 192.168.1.124:5065 SIP/2.0..Record-Route: 
> <sip:147.202.001.001:5060;nat=yes;ftag=3D7BF99A-F3B3ACE5;lr=on>..Via: 
> SIP/2.0/UDP 147.202.001.001;branch=z9hG4bKf294.1cda4646.0..Via: 
> SIP/2.0/UDP 
> 192.168.1.102;rport=5060;received=58.28.001.001;branch=z9hG4bKca52e47AD4AD366..From: 
> "CSB" <sip:44556648 at domain.com>;tag=3D7BF99A-F3B3ACE5..To: 
> <sip:44556644 at domain.com;user=phone>..CSeq: 1 INVITE..Call-ID: 
> 26e8c161-7e674928-90cba56b at 192.168.1.102..Contact: 
> <sip:44556648 at 58.28.001.001:5060>..Allow: INVITE, ACK, BYE, CANCEL, 
> OPTIONS, INFO, MESSAGE, SUBSCRIBE, NOTIFY, PRACK, UPDATE, 
> REFER..User-Agent: 
> PolycomSoundPointIP-SPIP_320-UA/2.1.1.0037..Supported: 
> 100rel,replaces..Allow-Events: talk,hold,conference..Max-Forwards: 
> 69..Content-Type: application/sdp..Content-Length: 253....v=0..o=- 
> 1216790431 1216790431 IN IP4 192.168.1.102..s=Polycom IP Phone..c=IN 
> IP4 147.202.001.001..t=0 0..m=audio 35984 RTP/AVP 0 8 18 
> 101..a=sendrecv..a=rtpmap:0 PCMU/8000..a=rtpmap:8 
> PCMA/8000..a=rtpmap:18 G729/8000..a=rtpmap:101 telephone-event/8000..
>
> U 58.28.001.001:5065 -> 147.202.001.001:5060SIP/2.0 100 Trying..To: 
> <sip:44556644 at domain.com;user=phone>..From: "CSB" 
> <sip:44556648 at domain.com>;tag=3D7BF99A-F3B3ACE5..Call-ID: 
> 26e8c161-7e674928-90cba56b at 192.168.1.102..CSeq: 1 INVITE..Via: 
> SIP/2.0/UDP 147.202.001.001;branch=z9hG4bKf294.1cda4646.0..Via: 
> SIP/2.0/UDP 
> 192.168.1.102;rport=5060;received=58.28.001.001;branch=z9hG4bKca52e47AD4AD366..Record-Route: 
> <sip:147.202.001.001:5060;nat=yes;ftag=3D7BF99A-F3B3ACE5;lr=on>..Server: 
> Linksys/SPA962-5.1.18(SC)..Content-Length: 0....
>
> U 58.28.001.001:5065 -> 147.202.001.001:5060SIP/2.0 180 Ringing..To: 
> <sip:44556644 at domain.com;user=phone>;tag=9f9da889431cd5afi5..From: 
> "CSB" <sip:44556648 at domain.com>;tag=3D7BF99A-F3B3ACE5..Call-ID: 
> 26e8c161-7e674928-90cba56b at 192.168.1.102..CSeq: 1 INVITE..Via: 
> SIP/2.0/UDP 147.202.001.001;branch=z9hG4bKf294.1cda4646.0..Via: 
> SIP/2.0/UDP 
> 192.168.1.102;rport=5060;received=58.28.001.001;branch=z9hG4bKca52e47AD4AD366..Record-Route: 
> <sip:147.202.001.001:5060;nat=yes;ftag=3D7BF99A-F3B3ACE5;lr=on>..Server: 
> Linksys/SPA962-5.1.18(SC)..Content-Length: 0....
>
> U 147.202.001.001:5060 -> 58.28.001.001:5060SIP/2.0 180 Ringing..To: 
> <sip:44556644 at domain.com;user=phone>;tag=9f9da889431cd5afi5..From: 
> "CSB" <sip:44556648 at domain.com>;tag=3D7BF99A-F3B3ACE5..Call-ID: 
> 26e8c161-7e674928-90cba56b at 192.168.1.102..CSeq: 1 INVITE..Via: 
> SIP/2.0/UDP 
> 192.168.1.102;rport=5060;received=58.28.001.001;branch=z9hG4bKca52e47AD4AD366..Record-Route: 
> <sip:147.202.001.001:5060;nat=yes;ftag=3D7BF99A-F3B3ACE5;lr=on>..Server: 
> Linksys/SPA962-5.1.18(SC)..Content-Length: 0....
>
> U 58.28.001.001:5065 -> 147.202.001.001:5060SIP/2.0 200 OK..To: 
> <sip:44556644 at domain.com;user=phone>;tag=9f9da889431cd5afi5..From: 
> "CSB" <sip:44556648 at domain.com>;tag=3D7BF99A-F3B3ACE5..Call-ID: 
> 26e8c161-7e674928-90cba56b at 192.168.1.102..CSeq: 1 INVITE..Via: 
> SIP/2.0/UDP 147.202.001.001;branch=z9hG4bKf294.1cda4646.0..Via: 
> SIP/2.0/UDP 
> 192.168.1.102;rport=5060;received=58.28.001.001;branch=z9hG4bKca52e47AD4AD366..Record-Route: 
> <sip:147.202.001.001:5060;nat=yes;ftag=3D7BF99A-F3B3ACE5;lr=on>..Contact: 
> <sip:44556644 at 192.168.1.124:5065>..Server: 
> Linksys/SPA962-5.1.18(SC)..Content-Length: 208..Allow: ACK, BYE, 
> CANCEL, INFO, INVITE, NOTIFY, OPTIONS, REFER..Supported: 
> replaces..Content-Type: application/sdp....v=0..o=- 317989 317989 IN 
> IP4 192.168.1.124..s=-..c=IN IP4 192.168.1.124..t=0 0..m=audio 16426 
> RTP/AVP 0 101..a=rtpmap:0 PCMU/8000..a=rtpmap:101 
> telephone-event/8000..a=fmtp:101 0-15..a=ptime:30..a=sendrecv..
>
> U 147.202.001.001:5060 -> 58.28.001.001:5060SIP/2.0 200 OK..To: 
> <sip:44556644 at domain.com;user=phone>;tag=9f9da889431cd5afi5..From: 
> "CSB" <sip:44556648 at domain.com>;tag=3D7BF99A-F3B3ACE5..Call-ID: 
> 26e8c161-7e674928-90cba56b at 192.168.1.102..CSeq: 1 INVITE..Via: 
> SIP/2.0/UDP 
> 192.168.1.102;rport=5060;received=58.28.001.001;branch=z9hG4bKca52e47AD4AD366..Record-Route: 
> <sip:147.202.001.001:5060;nat=yes;ftag=3D7BF99A-F3B3ACE5;lr=on>..Contact: 
> <sip:44556644 at 58.28.001.001:5065>..Server: 
> Linksys/SPA962-5.1.18(SC)..Content-Length: 209..Allow: ACK, BYE, 
> CANCEL, INFO, INVITE, NOTIFY, OPTIONS, REFER..Supported: 
> replaces..Content-Type: application/sdp....v=0..o=- 317989 317989 IN 
> IP4 192.168.1.124..s=-..c=IN IP4 147.202.001.001..t=0 0..m=audio 35984 
> RTP/AVP 0 101..a=rtpmap:0 PCMU/8000..a=rtpmap:101 
> telephone-event/8000..a=fmtp:101 0-15..a=ptime:30..a=sendrecv..
>
> U 58.28.001.001:5060 -> 147.202.001.001:5060ACK 
> sip:44556644 at 58.28.001.001:5065 SIP/2.0..Via: SIP/2.0/UDP 
> 192.168.1.102;branch=z9hG4bK9bb7064fBA56088E..From: "CSB" 
> <sip:44556648 at domain.com>;tag=3D7BF99A-F3B3ACE5..To: 
> <sip:44556644 at domain.com;user=phone>;tag=9f9da889431cd5afi5..Route: 
> <sip:147.202.001.001:5060;nat=yes;ftag=3D7BF99A-F3B3ACE5;lr=on>..CSeq: 
> 1 ACK..Call-ID: 26e8c161-7e674928-90cba56b at 192.168.1.102..Contact: 
> <sip:44556648 at 192.168.1.102>..Allow: INVITE, ACK, BYE, CANCEL, 
> OPTIONS, INFO, MESSAGE, SUBSCRIBE, NOTIFY, PRACK, UPDATE, 
> REFER..User-Agent: 
> PolycomSoundPointIP-SPIP_320-UA/2.1.1.0037..Max-Forwards: 
> 70..Content-Length: 0....
>
> U 147.202.001.001:5060 -> 58.28.001.001:5065ACK 
> sip:44556644 at 58.28.001.001:5065 SIP/2.0..Record-Route: 
> <sip:147.202.001.001;lr=on;ftag=3D7BF99A-F3B3ACE5>..Via: SIP/2.0/UDP 
> 147.202.001.001;branch=z9hG4bKf294.1cda4646.2..Via: SIP/2.0/UDP 
> 192.168.1.102;received=58.28.001.001;branch=z9hG4bK9bb7064fBA56088E..From: 
> "CSB" <sip:44556648 at domain.com>;tag=3D7BF99A-F3B3ACE5..To: 
> <sip:44556644 at domain.com;user=phone>;tag=9f9da889431cd5afi5..CSeq: 1 
> ACK..Call-ID: 26e8c161-7e674928-90cba56b at 192.168.1.102..Contact: 
> <sip:44556648 at 192.168.1.102>..Allow: INVITE, ACK, BYE, CANCEL, 
> OPTIONS, INFO, MESSAGE, SUBSCRIBE, NOTIFY, PRACK, UPDATE, 
> REFER..User-Agent: 
> PolycomSoundPointIP-SPIP_320-UA/2.1.1.0037..Max-Forwards: 
> 69..Content-Length: 0....
>
> U 58.28.001.001:5065 -> 147.202.001.001:5060SIP/2.0 200 OK..To: 
> <sip:44556644 at domain.com;user=phone>;tag=9f9da889431cd5afi5..From: 
> "CSB" <sip:44556648 at domain.com>;tag=3D7BF99A-F3B3ACE5..Call-ID: 
> 26e8c161-7e674928-90cba56b at 192.168.1.102..CSeq: 1 INVITE..Via: 
> SIP/2.0/UDP 147.202.001.001;branch=z9hG4bKf294.1cda4646.0..Via: 
> SIP/2.0/UDP 
> 192.168.1.102;rport=5060;received=58.28.001.001;branch=z9hG4bKca52e47AD4AD366..Record-Route: 
> <sip:147.202.001.001:5060;nat=yes;ftag=3D7BF99A-F3B3ACE5;lr=on>..Contact: 
> <sip:44556644 at 192.168.1.124:5065>..Server: 
> Linksys/SPA962-5.1.18(SC)..Content-Length: 208..Allow: ACK, BYE, 
> CANCEL, INFO, INVITE, NOTIFY, OPTIONS, REFER..Supported: 
> replaces..Content-Type: application/sdp....v=0..o=- 317989 317989 IN 
> IP4 192.168.1.124..s=-..c=IN IP4 192.168.1.124..t=0 0..m=audio 16426 
> RTP/AVP 0 101..a=rtpmap:0 PCMU/8000..a=rtpmap:101 
> telephone-event/8000..a=fmtp:101 0-15..a=ptime:30..a=sendrecv..
>
> U 147.202.001.001:5060 -> 58.28.001.001:5060SIP/2.0 200 OK..To: 
> <sip:44556644 at domain.com;user=phone>;tag=9f9da889431cd5afi5..From: 
> "CSB" <sip:44556648 at domain.com>;tag=3D7BF99A-F3B3ACE5..Call-ID: 
> 26e8c161-7e674928-90cba56b at 192.168.1.102..CSeq: 1 INVITE..Via: 
> SIP/2.0/UDP 
> 192.168.1.102;rport=5060;received=58.28.001.001;branch=z9hG4bKca52e47AD4AD366..Record-Route: 
> <sip:147.202.001.001:5060;nat=yes;ftag=3D7BF99A-F3B3ACE5;lr=on>..Contact: 
> <sip:44556644 at 58.28.001.001:5065>..Server: 
> Linksys/SPA962-5.1.18(SC)..Content-Length: 209..Allow: ACK, BYE, 
> CANCEL, INFO, INVITE, NOTIFY, OPTIONS, REFER..Supported: 
> replaces..Content-Type: application/sdp....v=0..o=- 317989 317989 IN 
> IP4 192.168.1.124..s=-..c=IN IP4 147.202.001.001..t=0 0..m=audio 35984 
> RTP/AVP 0 101..a=rtpmap:0 PCMU/8000..a=rtpmap:101 
> telephone-event/8000..a=fmtp:101 0-15..a=ptime:30..a=sendrecv..
>
> U 58.28.001.001:5065 -> 147.202.001.001:5060BYE 
> sip:44556648 at 58.28.001.001:5060 SIP/2.0..Via: SIP/2.0/UDP 
> 192.168.1.124:5065;branch=z9hG4bK-6829d146..From: 
> <sip:44556644 at domain.com;user=phone>;tag=9f9da889431cd5afi5..To: "CSB" 
> <sip:44556648 at domain.com>;tag=3D7BF99A-F3B3ACE5..Call-ID: 
> 26e8c161-7e674928-90cba56b at 192.168.1.102..CSeq: 101 BYE..Max-Forwards: 
> 70..Route: 
> <sip:147.202.001.001:5060;nat=yes;ftag=3D7BF99A-F3B3ACE5;lr=on>..User-Agent: 
> Linksys/SPA962-5.1.18(SC)..Content-Length: 0....
>
> U 147.202.001.001:5060 -> 58.28.001.001:5060BYE 
> sip:44556648 at 58.28.001.001:5060 SIP/2.0..Record-Route: 
> <sip:147.202.001.001;lr=on;ftag=9f9da889431cd5afi5>..Via: SIP/2.0/UDP 
> 147.202.001.001;branch=z9hG4bKac76.c88550f.0..Via: SIP/2.0/UDP 
> 192.168.1.124:5065;received=58.28.001.001;branch=z9hG4bK-6829d146..From: 
> <sip:44556644 at domain.com;user=phone>;tag=9f9da889431cd5afi5..To: "CSB" 
> <sip:44556648 at domain.com>;tag=3D7BF99A-F3B3ACE5..Call-ID: 
> 26e8c161-7e674928-90cba56b at 192.168.1.102..CSeq: 101 BYE..Max-Forwards: 
> 69..User-Agent: Linksys/SPA962-5.1.18(SC)..Content-Length: 0....
>
> U 58.28.001.001:5060 -> 147.202.001.001:5060SIP/2.0 200 OK..Via: 
> SIP/2.0/UDP 147.202.001.001;branch=z9hG4bKac76.c88550f.0..Via: 
> SIP/2.0/UDP 
> 192.168.1.124:5065;received=58.28.001.001;branch=z9hG4bK-6829d146..From: 
> <sip:44556644 at domain.com;user=phone>;tag=9f9da889431cd5afi5..To: "CSB" 
> <sip:44556648 at domain.com>;tag=3D7BF99A-F3B3ACE5..CSeq: 101 
> BYE..Call-ID: 26e8c161-7e674928-90cba56b at 192.168.1.102..Contact: 
> <sip:44556648 at 192.168.1.102>..Record-Route: 
> <sip:147.202.001.001;lr=on;ftag=9f9da889431cd5afi5>..User-Agent: 
> PolycomSoundPointIP-SPIP_320-UA/2.1.1.0037..Content-Length: 0....
>
> U 147.202.001.001:5060 -> 58.28.001.001:5065SIP/2.0 200 OK..Via: 
> SIP/2.0/UDP 
> 192.168.1.124:5065;received=58.28.001.001;branch=z9hG4bK-6829d146..From: 
> <sip:44556644 at domain.com;user=phone>;tag=9f9da889431cd5afi5..To: "CSB" 
> <sip:44556648 at domain.com>;tag=3D7BF99A-F3B3ACE5..CSeq: 101 
> BYE..Call-ID: 26e8c161-7e674928-90cba56b at 192.168.1.102..Contact: 
> <sip:44556648 at 58.28.001.001:5060>..Record-Route: 
> <sip:147.202.001.001;lr=on;ftag=9f9da889431cd5afi5>..User-Agent: 
> PolycomSoundPointIP-SPIP_320-UA/2.1.1.0037..Content-Length: 0....
>
> U 58.28.001.001:5065 -> 147.202.001.001:5060BYE 
> sip:44556648 at 58.28.001.001:5060 SIP/2.0..Via: SIP/2.0/UDP 
> 192.168.1.124:5065;branch=z9hG4bK-6829d146..From: 
> <sip:44556644 at domain.com;user=phone>;tag=9f9da889431cd5afi5..To: "CSB" 
> <sip:44556648 at domain.com>;tag=3D7BF99A-F3B3ACE5..Call-ID: 
> 26e8c161-7e674928-90cba56b at 192.168.1.102..CSeq: 101 BYE..Max-Forwards: 
> 70..Route: 
> <sip:147.202.001.001:5060;nat=yes;ftag=3D7BF99A-F3B3ACE5;lr=on>..User-Agent: 
> Linksys/SPA962-5.1.18(SC)..Content-Length: 0....
>
> U 147.202.001.001:5060 -> 58.28.001.001:5065SIP/2.0 200 OK..Via: 
> SIP/2.0/UDP 
> 192.168.1.124:5065;received=58.28.001.001;branch=z9hG4bK-6829d146..From: 
> <sip:44556644 at domain.com;user=phone>;tag=9f9da889431cd5afi5..To: "CSB" 
> <sip:44556648 at domain.com>;tag=3D7BF99A-F3B3ACE5..CSeq: 101 
> BYE..Call-ID: 26e8c161-7e674928-90cba56b at 192.168.1.102..Contact: 
> <sip:44556648 at 58.28.001.001:5060>..Record-Route: 
> <sip:147.202.001.001;lr=on;ftag=9f9da889431cd5afi5>..User-Agent: 
> PolycomSoundPointIP-SPIP_320-UA/2.1.1.0037..Content-Length: 0....
>
> **************************
>
> iptables config
>
> $IPTABLES -A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT
>
> $IPTABLES -A OUTPUT -m state --state ESTABLISHED,RELATED -j ACCEPT
>
> $IPTABLES -A FORWARD -m state --state ESTABLISHED,RELATED -j ACCEPT
>
> #
>
> # Rule 0 (tun0,tun1,tun2)
>
> #
>
> echo "Rule 0 (tun0,tun1,tun2)"
>
> #
>
> #
>
> #
>
> $IPTABLES -N In_RULE_0
>
> $IPTABLES -A INPUT -i tun0 -m state --state NEW -j In_RULE_0
>
> $IPTABLES -A INPUT -i tun1 -m state --state NEW -j In_RULE_0
>
> $IPTABLES -A INPUT -i tun2 -m state --state NEW -j In_RULE_0
>
> $IPTABLES -A FORWARD -i tun0 -m state --state NEW -j In_RULE_0
>
> $IPTABLES -A FORWARD -i tun1 -m state --state NEW -j In_RULE_0
>
> $IPTABLES -A FORWARD -i tun2 -m state --state NEW -j In_RULE_0
>
> $IPTABLES -A In_RULE_0 -j LOG --log-level warning --log-prefix "RULE 0 
> -- ACCEPT "
>
> $IPTABLES -A In_RULE_0 -j ACCEPT
>
> $IPTABLES -N Out_RULE_0
>
> $IPTABLES -A OUTPUT -o tun0 -m state --state NEW -j Out_RULE_0
>
> $IPTABLES -A OUTPUT -o tun1 -m state --state NEW -j Out_RULE_0
>
> $IPTABLES -A OUTPUT -o tun2 -m state --state NEW -j Out_RULE_0
>
> $IPTABLES -A FORWARD -o tun0 -m state --state NEW -j Out_RULE_0
>
> $IPTABLES -A FORWARD -o tun1 -m state --state NEW -j Out_RULE_0
>
> $IPTABLES -A FORWARD -o tun2 -m state --state NEW -j Out_RULE_0
>
> $IPTABLES -A Out_RULE_0 -j LOG --log-level warning --log-prefix "RULE 
> 0 -- ACCEPT "
>
> $IPTABLES -A Out_RULE_0 -j ACCEPT
>
> $IPTABLES -A Out_RULE_0 -j ACCEPT
>
> #
>
> # Rule 1 (lo)
>
> #
>
> echo "Rule 1 (lo)"
>
> #
>
> #
>
> #
>
> $IPTABLES -N In_RULE_1
>
> $IPTABLES -A INPUT -i lo -p icmp -m icmp --icmp-type any -m state 
> --state NEW -j In_RULE_1
>
> $IPTABLES -A INPUT -i lo -p tcp -m tcp -m multiport --dports 
> 25060,8008,25,443,80,22,3306,5060 -m state --state NEW -j In_RULE_1
>
> #$IPTABLES -A INPUT -i lo -p udp -m udp -m multiport --dports 
> 5060,1813 -m state --state NEW -j In_RULE_1
>
> $IPTABLES -A INPUT -i lo -p udp -m udp -m multiport --dports 1:55000 
> -m state --state NEW -j In_RULE_1
>
> $IPTABLES -A In_RULE_1 -j LOG --log-level warning --log-prefix "RULE 1 
> -- ACCEPT "
>
> $IPTABLES -A In_RULE_1 -j ACCEPT
>
> $IPTABLES -N Out_RULE_1
>
> $IPTABLES -A OUTPUT -o lo -p icmp -m icmp --icmp-type any -m state 
> --state NEW -j Out_RULE_1
>
> $IPTABLES -A OUTPUT -o lo -p tcp -m tcp -m multiport --dports 
> 25060,8008,25,443,80,22,3306,5060 -m state --state NEW -j Out_RULE_1
>
> #$IPTABLES -A OUTPUT -o lo -p udp -m udp -m multiport --dports 
> 5060,1813 -m state --state NEW -j Out_RULE_1
>
> $IPTABLES -A OUTPUT -o lo -p udp -m udp -m multiport --dports 1:55000 
> -m state --state NEW -j Out_RULE_1
>
> $IPTABLES -A Out_RULE_1 -j LOG --log-level warning --log-prefix "RULE 
> 1 -- ACCEPT "
>
> $IPTABLES -A Out_RULE_1 -j ACCEPT
>
> #
>
> # Rule 2 (eth0)
>
> #
>
> echo "Rule 2 (eth0)"
>
> #
>
> #
>
> #
>
> $IPTABLES -N Out_RULE_2
>
> $IPTABLES -A OUTPUT -o eth0 -d 10.8.1.1 -m state --state NEW -j Out_RULE_2
>
> $IPTABLES -A FORWARD -o eth0 -d 10.8.1.1 -m state --state NEW -j 
> Out_RULE_2
>
> $IPTABLES -A Out_RULE_2 -j LOG --log-level warning --log-prefix "RULE 
> 2 -- ACCEPT "
>
> $IPTABLES -A Out_RULE_2 -j ACCEPT
>
> #
>
> # Rule 3 (eth0)
>
> #
>
> echo "Rule 3 (eth0)"
>
> #
>
> # ping test for nagios
>
> #
>
> $IPTABLES -N Cid485B0E561900.0
>
> $IPTABLES -A INPUT -i eth0 -d 147.202.001.001 -m state --state NEW -j 
> Cid485B0E561900.0
>
> $IPTABLES -N Cid485B0E561900.1
>
> $IPTABLES -A Cid485B0E561900.0 -p icmp -m icmp --icmp-type any -j 
> Cid485B0E561900.1
>
> $IPTABLES -A Cid485B0E561900.0 -p tcp -m tcp -m multiport --dports 
> 25,3306 -j Cid485B0E561900.1
>
> $IPTABLES -N In_RULE_3
>
> $IPTABLES -A Cid485B0E561900.1 -s 203.89.001.001 -j In_RULE_3
>
> $IPTABLES -A Cid485B0E561900.1 -s 58.28.001.001 -j In_RULE_3
>
> $IPTABLES -A Cid485B0E561900.1 -s 64.38.001.001 -j In_RULE_3
>
> $IPTABLES -A In_RULE_3 -j LOG --log-level warning --log-prefix "RULE 3 
> -- ACCEPT "
>
> $IPTABLES -A In_RULE_3 -j ACCEPT
>
> #
>
> echo "Rule 4 (eth0)"
>
> #
>
> # ping test for nagios
>
> #
>
> $IPTABLES -N Cid485B0E6A1900.0
>
> $IPTABLES -A OUTPUT -o eth0 -s 147.202.001.001 -m state --state NEW -j 
> Cid485B0E6A1900.0
>
> $IPTABLES -N Cid485B0E6A1900.1
>
> $IPTABLES -A Cid485B0E6A1900.0 -p icmp -m icmp --icmp-type any -j 
> Cid485B0E6A1900.1
>
> $IPTABLES -A Cid485B0E6A1900.0 -p tcp -m tcp -m multiport --dports 
> 25,3306 -j Cid485B0E6A1900.1
>
> $IPTABLES -N Out_RULE_4
>
> $IPTABLES -A Cid485B0E6A1900.1 -d 203.89.001.001 -j Out_RULE_4
>
> $IPTABLES -A Cid485B0E6A1900.1 -d 58.28.001.001 -j Out_RULE_4
>
> $IPTABLES -A Cid485B0E6A1900.1 -d 64.38.001.001 -j Out_RULE_4
>
> $IPTABLES -A Out_RULE_4 -j LOG --log-level warning --log-prefix "RULE 
> 4 -- ACCEPT "
>
> $IPTABLES -A Out_RULE_4 -j ACCEPT
>
> #
>
> # Rule 5 (eth0)
>
> #
>
> echo "Rule 5 (eth0)"
>
> #
>
> #
>
> #
>
> $IPTABLES -N In_RULE_5
>
> $IPTABLES -A INPUT -i eth0 -p tcp -m tcp -m multiport -d 
> 147.202.001.001 --dports 5060,22,443,80,53,25060,8008 -m state --state 
> NEW -j In_RULE_5
>
> #$IPTABLES -A INPUT -i eth0 -p udp -m udp -d 147.202.001.001 --dport 
> 10000:20000 -m state --state NEW -j In_RULE_5
>
> #$IPTABLES -A INPUT -i eth0 -p udp -m udp -d 147.202.001.001 --dport 
> 35000:36000 -m state --state NEW -j In_RULE_5
>
> #$IPTABLES -A INPUT -i eth0 -p udp -m udp -m multiport -d 
> 147.202.001.001 --dports 1194,5065,5060,53,10000:20000,35000:36000 -m 
> state --state NEW -j In_RULE_5
>
> $IPTABLES -A INPUT -i eth0 -p udp -m udp -m multiport --dports 1:55000 
> -m state --state NEW -j In_RULE_5
>
> $IPTABLES -A In_RULE_5 -j LOG --log-level warning --log-prefix "RULE 5 
> -- ACCEPT "
>
> $IPTABLES -A In_RULE_5 -j ACCEPT
>
> #
>
> # Rule 6 (eth0)
>
> #
>
> echo "Rule 6 (eth0)"
>
> #
>
> #
>
> #
>
> $IPTABLES -N Out_RULE_6
>
> $IPTABLES -A OUTPUT -o eth0 -p tcp -m tcp -m multiport -s 
> 147.202.001.001 --dports 22,53,80,443,5060,8008,25060,25 -m state 
> --state NEW -j Out_RULE_6
>
> #$IPTABLES -A OUTPUT -o eth0 -p udp -m udp -s 147.202.001.001 --dport 
> 10000:20000 -m state --state NEW -j Out_RULE_6
>
> #$IPTABLES -A OUTPUT -o eth0 -p udp -m udp -s 147.202.001.001 --dport 
> 35000:36000 -m state --state NEW -j Out_RULE_6
>
> #$IPTABLES -A OUTPUT -o eth0 -p udp -m udp -m multiport -s 
> 147.202.001.001 --dports 
> 53,1194,5060,5065,1813,123,10000:20000,35000:36000 -m state --state 
> NEW -j Out_RULE_6
>
> $IPTABLES -A OUTPUT -o eth0 -p udp -m udp -m multiport --dports 
> 1:55000 -m state --state NEW -j Out_RULE_6
>
> $IPTABLES -A Out_RULE_6 -j LOG --log-level warning --log-prefix "RULE 
> 6 -- ACCEPT "
>
> $IPTABLES -A Out_RULE_6 -j ACCEPT
>
> #
>
> # Rule 7 (global)
>
> #
>
> echo "Rule 7 (global)"
>
> #
>
> #
>
> #
>
> $IPTABLES -N RULE_7
>
> $IPTABLES -A OUTPUT -j RULE_7
>
> $IPTABLES -A INPUT -j RULE_7
>
> $IPTABLES -A FORWARD -j RULE_7
>
> $IPTABLES -A RULE_7 -j LOG --log-level warning --log-prefix "RULE 7 -- 
> DENY "
>
> $IPTABLES -A RULE_7 -j DROP
>
> #
>
> #
>
> ------------------------------------------------------------------------
>
> _______________________________________________
> Users mailing list
> Users at lists.openser.org
> http://lists.openser.org/cgi-bin/mailman/listinfo/users
>   

-- 
Daniel-Constantin Mierla
http://www.asipto.com





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