RE: [Partysip-dev] [Q] URI binding with IP addr

[Aymeric Moizard]

On Wed, 8 Oct 2003, Walter Schober wrote:

> An example did help me most:
> This is our DNS entry (internal only yet):
>
> ; SIP URL settings
> ; finding the proxy for _sip._<transport>
> _sip._tcp.labor.uta.at. IN SRV  0 5 5060 sip-proxy.domain.at.
> _sip._udp.labor.uta.at. IN SRV  0 5 5060 sip-proxy.domain.at.
> ; finding the appropriate protocol.transport of a domain
> domain.at.   IN      NAPTR   10 100 "s" "SIP+D2U"    "" _sip._udp
>                 IN      NAPTR   20 100 "s" "SIP+D2T"    "" _sip._tcp
>
> ; normal A, CNAME entries
> xxx          IN      A       1.2.3.4
> yyy          IN      CNAME   xxx

As partysip only support UDP, when the SRV call is made on
"sip-proxy.domain.at", it should resolv to _sip._tcp.labor.uta.at
And the message should be sent there.

If this is not the case, send me a full log of partysip (registration+
INVITE)
Aymeric

> W.
>
> -----Original Message-----
> From: address@hidden
> [mailto:address@hidden On
> Behalf Of ppp ppp
> Sent: Monday, October 06, 2003 12:49 PM
> To: address@hidden
> Subject: [Partysip-dev] [Q] URI binding with IP addr
>
>
> Hi,
>
> I have a general SIP proxy Q with URI binding with IP addr.
>
> How Proxy bind URI with IP addr?
> Does this IP addr get from ip addr  in contact header or src addr from
> IP header ?
> I assume it get from contact header since it may not be
> the same with src ip addr
>
> How about if addr in contact header is a domain name
> which different with the the domain that the proxy responsible for?
> e.q.
> If a proxy responsible for domain --a.com
>
> Sip client register msg may looks like
>
> REGISTER sip:a.com SIP/2.0
> Via: ......
> From: 22 <sip:address@hidden>;tag=3437148938
> To: 22 <sip:address@hidden>
> ....
> Contact: sip:address@hidden
> ...
>
>
> Does the binding will be below?
> address@hidden :  address@hidden
>
> So if this proxy rcv msg that dest to address@hidden, it will
> use DNS resolve z.com and send to z.com proxy first?
>
> Is there any protocol between proxies so proxy for a.com know the IP
> addr for z.com?
>
> Thanks,
> Leon
>
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