Dear Marian. Thanks again for your response. I used the commands you recommend me and i saw the inverse bahaivor. First the original IP is 10.0.0.1, then for test purposes i changed to 10.0.0.5 and registered again. Here is my location table after the endpoint is registered again with another IP address.
...Record(0x422b9158)... domain: 'location' aor : '5555832351' ~~~Contact(0x422b91a0)~~~ domain : 'location' aor : '5555832351' Contact : 'sip:5555832351@10.0.0.1' Expires : 831 q : 0.00 Call-ID : 'e0928e42-fd7e-df78-8000-0002a400f1e9@10.0.0.1' CSeq : 3456 replic : 0 User-Agent: 'AddPac SIP Gateway' State : CS_NEW Flags : 0 next : 0x422b9390 prev : (nil) ~~~/Contact~~~~ ~~~Contact(0x422b9390)~~~ domain : 'location' aor : '5555832351' Contact : 'sip:5555832351@10.0.0.5' Expires : 897 q : 0.00 Call-ID : 'e0928e42-fd7e-df78-8000-0002a400f1e9@10.0.0.1' CSeq : 3461 replic : 0 User-Agent: 'AddPac SIP Gateway' State : CS_NEW Flags : 0 next : (nil) prev : 0x422b91a0 ~~~/Contact~~~~
As you can see the order is ascending (not descending as the modulu manual says). The when i try to make a call to the 555-5832351 the INVITE is generated just one time (as you said to me), but for the first contact, to the 10.0.0.1, the old IP, so there is no response and the call is not completed.
Am i missing something? Thanks in advance
Best Regards Ricardo.-
-----Mensaje original----- De: Marian Dumitru [mailto:marian.dumitru@voice-sistem.ro] Enviado el: Miércoles, 27 de Octubre de 2004 13:07 Para: Ricardo Martinez CC: 'serusers@lists.iptel.org' Asunto: Re: [Serusers] Question about REGISTER.
Hi Ricardo,
I see your problem. What you can do is to set registrar module to use only the most recent registered contact: modparam("registrar","append_branches", 0) modparam("registrar","desc_time_order", 1)
Other thing you can do is to limit the registration time modparam("registrar","max_expires", 300)
to use this, be sure your SIP clients supports expire modification by server.
Best regards, Marian Dumitru
Ricardo Martinez wrote:
Hello List. I have a question about how SIP and SER work with the Registered Endpoints. Suppose that i have and endpoint with obtaining IP by DHCP.
In
the first attemp the REGISTER have the IP : 10.0.0.1. Suppose that after
a
while the enpoint is disconnected and connected again, so by DHCP it takes another IP, for example 10.0.0.5. So in my location table i see.
aor : '5555832351' Contact : 'sip:5555832351@10.0.0.1' Expires : 642
aor : '5555832351' Contact : 'sip:5555832351@10.0.0.5' Expires : 3000
So when i call to the 555-5832351 SER generates two INVITES (to the 2 registered endpoints) but only the 10.0.0.5 answer the call. So far this
is
not a problem, but suppose now that a new endpoint with number 5555832359 obtain by DHCP the old IP 10.0.0.1, so it tries to register with the SIP-Proxy . What i see in the location table is now:
aor : '5555832359' Contact : 'sip:5555832359@10.0.0.1' Expires : 3000
aor : '5555832351' Contact : 'sip:5555832351@10.0.0.1' Expires : 442
aor : '5555832351' Contact : 'sip:5555832351@10.0.0.5' Expires : 2800
So when i call to the 555-5832351 the INVITE goes to these 3 endpoints. Generating too much traffic and erroneus RESPONSE messages in SER and in
the
endpoints. My question is : Is posible only permit one IP address per endpoint registered in the location table?. Or make sure that only one endpoint
with
a given IP and URI is registered in the location DB?.
Thanks in advance Best Regards
Ricardo.-
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