[Serusers] Forwarding to another number if busy

[Andy Blen]

Use then the other methods, for instance look if the request is coming
from SER's address. The condition src_ip==gw cannot hold since you 
forward to yourself and the request appears to come from server itself
in the second cycle.

a.

At 08:51 PM 6/6/2003, Greg Fausak wrote:
>Andy,
>
>The point is there aren't any credentials.
>
>Anyway, thanks for the ideas.
>
>---greg
>
>
>> -----Original Message-----
>> From: Andy Blen [mailto:andy.blen at iptel.org] 
>> Sent: Friday, June 06, 2003 11:11 AM
>> To: Andy Blen; Greg Fausak; 'Jan Janak'
>> Cc: serusers at lists.iptel.org; sip at august.net
>> Subject: RE: [Serusers] Forwarding to another number if busy
>> 
>> 
>> At 05:47 PM 6/6/2003, Andy Blen wrote:
>> >At 05:14 PM 6/6/2003, Greg Fausak wrote:
>> >>I do not know why reply_route seems to call the
>> >> main route block again.  I do know that if I comment out
>> >> the authentication code in the main route block my forwarding
>> >> works.  If I do not comment it out, then the forwarding
>> >> fails with an 'Unauthorized' directed at the pstn gateway.
>> >
>> >Presumably, you rewrite the URI with a URI which results in
>> >a loop over loopback interface. That causes a request to be
>> >forwarded to the server again as a new transaction, which is
>> >subject to authentication checks again. You can verify it by looking
>> >at via_cnt in Warning header field of replies or by watching
>> >local interface.  There are different ways of dealing with it
>> >-- not challenging request coming from itself, forwarding to
>> >gateway directly (as opposed through itself), for example.
>> 
>> one more possibility is not to consume credentials if next hop
>> is youself.
>> 
>> a. 
>> 
>
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--
Andy Blen
iptel.org Services