Hi,
First of all i'm extremely sorry for having floated this query on the sip list. i
should have done it on the implementors list.( I'm not recieving any message on that
list even after subscription of three different mail ids.)
My confusion about the Location server is related to the SIP registrar itself.
A user inside a LAN connected to the outside world thru an outbound proxy.
This user will definetly register to the proxy. So there should be a location server
for this LAN or the proxy should accept registers. Am i right?
Secondly if i'm implementing a proxy server i need to query the location server to get
the IP of the server i need to send the request to. I can do this using a DNS lookup
or contact the location server.
It will contact the location server for an IP in its own domain.If not the DNS will be
queried.
Can u please tell me if my understanding is right?
If i'm implementing a registrar. how do i update the DNS records and with what fields?
------------- Original Message --------------
Vijay Gurbani <[EMAIL PROTECTED]> wrote:
To:Vijeth D <[EMAIL PROTECTED]>
From:Vijay Gurbani <[EMAIL PROTECTED]>
Date:Thu, 15 Feb 2001 09:13:01 -0600
CC:SIP Implementors <[EMAIL PROTECTED]>
Subject:Re: [SIP] regarding location servers and sip registrars
Vijeth D wrote:
>
> Hi,
[...moved to SIP Implementors...]
> 1. The rfc specifies that the communication b/n the proxies and the
> location servers is out of scope of the document. Can anybody tell me what
> document or rfc to refer to understand about this communication.
Not sure why the communication between a proxy and a location server is
turning out to be a formidable task; it's simple really -- your location
server could be anything -- a Unix daemon that you wrote which saves info-
rmation to a disk file, finger/rwho daemons, LDAP data store, commercial
DBMS systems, anything you desire. When a proxy wants to resolve a SIP URI
in its domain to a location, it can communicate with the LS in the language
that they both understand -- LDAP queries, SQL statements, Unix commands,
whatever...
> 2. Also there is not much information about the functioning of the SIP
> registrars in the RFC. Is there any document or draft specifying the
> same.?
Are you looking for any specific information on registrars? Having
implemented a registrar/proxy/redirect server, I found out that the RFC had
all the information I needed. Do you have a specific query on the
functionality of a registrar...
Regards,
- vijay
--
Vijay K. Gurbani vkg@{lucent.com,research.bell-labs.com,acm.org}
Internet Software and eServices Group
Lucent Technologies/Bell Labs Innovations 263 Shuman Blvd., Rm 1A-413
Naperville, Illinois 60566 Voice: +1 630 224 0216 Fax: +1 630 713 0184
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