[SR-Users] SIP Auth Realm - From domain or Request domain ?

jay binks jaybinks at gmail.com
Thu Jun 4 02:52:52 CEST 2015


I have a questions in regards to SIP Auth, and specifically how Asterisk 13
with PJSIP appears to send Invites.

It seems that the typical Kamailio config sends the SIP auth challenge with
the from domain as the auth realm.
however in the case of the Asterisk 13 ( PJSIP ) invite, the from domain is
an RFC1918 IP address and I would have to use the domain from the request.

What im wanting to know is what the consensus is on where the auth realm
comes from.
does everyone 100% agree that you send auth using the SIP From header, or
is this something that some do Request domain ?   What im considering doing
is to use the from domain, but if from domain = RFC1918 then use request
domain.

Im just after everyone's opinion on how to best handle this invite, from a
auth_challenge perspective.
( not so much if the Asterisk 13 PJSIP module is doing the right or wrong
thing )

INVITE sip:555111222333 at sip.mytestdomain.com:5060 SIP/2.0
Via: SIP/2.0/UDP
180.111.222.333:5060;rport;branch=z9hG4bKPjafb111a9-aaaf-4c9e-b456-748514855a06
From: <sip:555111222333 at 172.18.90.1
>;tag=88317259-052b-4997-bd2e-9c8836e27b47
To: <sip:555111222333 at sip.netsip.net.au>
Contact: <sip:9d43c8df-6378-4266-89c1-0a0bb0e1d0d1 at 180.111.222.333:5060>
Call-ID: b7da52e2-dfd1-434e-a2c2-b28e1683ce0e

-- 
Sincerely

Jay
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