Re: Configuration help needed for Cisco 7905

Jeremy Malcolm <Jeremy-emby6n1pwoBWo+R/V/U2/[email protected]> Sat, 20 Apr 2013 20:05:36 +0800
Newsgroups	gmane.network.siproxd
Message-ID	<[email protected]>
On 14/04/2013, at 9:22 PM, Thomas Ries <[email protected]> wrote:

> The siproxd debug log may reveal more details on why a 408 Request Timeout
> response is returned..

Yes, it helps, I find this in the log when my phone tries to register and dial 888123456:

11:09:05 utils.c:197 gethostbyname(my.sip.server.net) failed: h_errno=1 [Unknown host]
11:09:05 utils.c:255 DNS lookup - store into cache, entry 2)
11:09:05 utils.c:264 DNS lookup - errcnt=1
11:09:05 sock.c:434 send UDP packet to 192.168.15.122: 5060

So it's apparently failing to lookup the name of my SIP server.  But why?  I can look it up from the command line of the host running siproxd.  Also, later on, it can lookup its own external IP address correctly:

11:09:39 utils.c:353 fetching outbound IP by HOSTNAME
11:09:39 utils.c:215 DNS lookup - resolved: 107.118.224.42 -> 107.118.224.42
11:09:39 utils.c:255 DNS lookup - store into cache, entry 3)
11:09:39 sip_utils.c:1179 sip_find_direction: unable to determine direction of SIP packet
11:09:39 INFO:plugin_logcall.c:126 Outgoing Call: cisco-pU0pTbRKGX/[email protected] -> 888123456-pU0pTbRKGX/[email protected] [Req: 888123456-pU0pTbRKGX/[email protected]]
11:09:39 proxy.c:242 request [INVITE] from/to unregistered UA (RQ: cisco-pU0pTbRKGX/[email protected] -> 888123456-pU0pTbRKGX/[email protected])
11:09:39 sock.c:434 send UDP packet to 192.168.15.122: 5060

Any ideas?  Thanks.


> On 04/07/2013 09:54 AM, Jeremy Malcolm wrote:
>> My configuration is like this one:
>> 
>> http://siproxd.sourceforge.net/siproxd_guide/siproxd_guide_c7s3.html
>> 
>> However my phone is different; it's a Cisco 7905.  The relevant settings that the phone allows me to configure are these:
>> 
>> UID	 cisco
>> PWD	 mypassword
>> Proxy	 my.sip.server.net
>> SIPRegOn     1
>> SIPRegInterval	 3600
>> StaticIP    192.168.15.122
>> OutBoundProxy	 192.168.15.200 [my siproxd machine]
>> StaticRoute    192.168.15.1 [my dumb masquerading router, with siproxd set as the DMZ]
>> 
>> Here is my configuration for siproxd:
>> 
>> if_inbound  = eth0
>> if_outbound = eth0
>> host_outbound = name-that-resolves-to-my-external-ip.net
>> 
>> It doesn't work, here is what happens:
>> 
>> 15:31:35 INFO:siproxd.c:233 siproxd-0.8.1-53 i486-pc-linux-gnu starting up
>> 15:31:35 INFO:plugins.c:112 Plugin 'plugin_logcall' [Logs calls to syslog] loaded with success, exemask=0x40
>> 07:31:35 INFO:rtpproxy_relay.c:121 Current thread stacksize is 8192 kB
>> 07:31:35 INFO:sock.c:131 bound to port 5060
>> 07:31:35 INFO:siproxd.c:344 siproxd-0.8.1-53 i486-pc-linux-gnu started
>> 07:31:57 INFO:plugin_logcall.c:126 Outgoing Call: cisco-pU0pTbRKGX/[email protected] -> 888123456-pU0pTbRKGX/[email protected] [Req: 888123456-pU0pTbRKGX/[email protected]]
>> 07:31:57 INFO:plugin_logcall.c:126 ACK Call: cisco-pU0pTbRKGX/[email protected] -> 888123456-pU0pTbRKGX/[email protected] [Req: 888123456-pU0pTbRKGX/[email protected]]
>> 
>> Also by using ngrep I see this:
>> 
>> interface: eth0 (192.168.15.0/255.255.255.0)
>> filter: (ip or ip6) and ( port 5060 )
>> #
>> U 192.168.15.122:5060 -> 192.168.15.200:5060
>> REGISTER sip:my.sip.server.net SIP/2.0.
>> Via: SIP/2.0/UDP 192.168.15.122:5060.
>> From: sip:cisco-pU0pTbRKGX/[email protected];tag=3840067541.
>> To: sip:cisco-pU0pTbRKGX/[email protected]
>> Call-ID: [email protected]
>> CSeq: 1 REGISTER.
>> Contact: Jeremy Malcolm <sip:cisco-Q0ErXNX1RuY/[email protected]:5060;transport=udp>;expires=3600.
>> User-Agent: Cisco-CP7905/1.01-030807A.
>> Allow: ACK, BYE, CANCEL, INVITE, NOTIFY, OPTIONS, REFER, REGISTER.
>> Content-Length: 0.
>> .
>> 
>> #
>> U 192.168.15.200:5060 -> 192.168.15.122:5060
>> SIP/2.0 408 Request Timeout.
>> Via: SIP/2.0/UDP 192.168.15.122:5060.
>> From: <sip:cisco-pU0pTbRKGX/[email protected]>;tag=3840067541.
>> To: <sip:cisco-pU0pTbRKGX/[email protected]>.
>> Call-ID: [email protected]
>> CSeq: 1 REGISTER.
>> Content-Length: 0.
>> .
>> 
>> #
>> U 192.168.15.122:5060 -> 192.168.15.200:5060
>> INVITE sip:88812346-pU0pTbRKGX/[email protected];user=phone SIP/2.0.
>> Via: SIP/2.0/UDP 192.168.15.122:5060.
>> From: Jeremy Malcolm <sip:cisco-pU0pTbRKGX/[email protected]>;tag=816758886.
>> To: <sip:88812346-pU0pTbRKGX/[email protected];user=phone>.
>> Call-ID: [email protected]
>> CSeq: 1 INVITE.
>> Contact: Jeremy Malcolm <sip:cisco-Q0ErXNX1RuY/[email protected]:5060;transport=udp>.
>> User-Agent: Cisco-CP7905/1.01-030807A.
>> Allow: ACK, BYE, CANCEL, INVITE, NOTIFY, OPTIONS, REFER, REGISTER.
>> Expires: 300.
>> Content-Length: 262.
>> Content-Type: application/sdp.
>> .
>> v=0.
>> o=cisco 15826 15826 IN IP4 192.168.15.122.
>> s=Cisco 7905 SIP Call.
>> c=IN IP4 192.168.15.122.
>> t=0 0.
>> m=audio 16384 RTP/AVP 18 8 0 101.
>> a=rtpmap:18 G729/8000/1.
>> a=rtpmap:8 PCMA/8000/1.
>> a=rtpmap:0 PCMU/8000/1.
>> a=rtpmap:101 telephone-event/8000.
>> a=fmtp:101 0-15.
>> 
>> #
>> U 192.168.15.200:5060 -> 192.168.15.122:5060
>> SIP/2.0 408 Request Timeout.
>> Via: SIP/2.0/UDP 192.168.15.122:5060.
>> From: Jeremy Malcolm <sip:cisco-pU0pTbRKGX/[email protected]>;tag=816758886.
>> To: <sip:88812346-pU0pTbRKGX/[email protected];user=phone>.
>> Call-ID: [email protected]
>> CSeq: 1 INVITE.
>> Content-Length: 0.
>> .
>> 
>> #
>> U 192.168.15.122:5060 -> 192.168.15.200:5060
>> ACK sip:88812346-pU0pTbRKGX/[email protected];user=phone SIP/2.0.
>> Via: SIP/2.0/UDP 192.168.15.122:5060.
>> From: Jeremy Malcolm <sip:cisco-pU0pTbRKGX/[email protected]>;tag=816758886.
>> To: <sip:88812346-pU0pTbRKGX/[email protected];user=phone>.
>> Call-ID: [email protected]
>> CSeq: 1 ACK.
>> User-Agent: Cisco-CP7905/1.01-030807A.
>> Content-Length: 0.
>> 
>> Interestingly there is no sign of "name-that-resolves-to-my-external-ip.net" above.  I have tried running a similar command on my.sip.server.net (because it's my own SIP server running yate), but it never sees anything.
>> 
>> Also interestingly, I have sip softphones on the same network which work fine, even without using siproxd as the proxy.  I guess they are a bit smarter about NAT, and can work fine even though my router does not have a sip ALG built-in.
>> 
>> Any help appreciated...
>> 
>> PS. Public IP addresses/domains have been changed for privacy/security reasons.

--
Jeremy Malcolm PhD LLB (Hons) B Com
Internet and Open Source lawyer, consumer advocate and geek
host -t NAPTR 5.9.8.5.2.8.2.2.1.0.6.e164.org|awk -F! '{print $3}'




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