[Serusers] Why Was This INVITE Not Loose_Route()ed ??

[Cesc Santasusana]

Hi,

In a different scenario from yours, i encountered the same problem of
loose_route() unexpectedly returning false.

In my case, it was when i was running a softphone on the same computer
as the ser proxy. If someone would send 
a routed message to the phone, for example a BYE, or a re-INVITE, SER
would return false at the loose_route() function. This means that ser
identifies the previous hop as doing strict routing. 

I was able to solve this by removing the ser-proxy IP address from the
alias="...." list in ser.cfg, and then using the domain module to gain
back the same functionality (or close) when doing the uri==myself. 

Don't know how your ser.cfg looks like, but just thought that maybe
this might be useful.

Regards,

Cesc


>>> Klaus Darilion <klaus.mailinglists at pernau.at> 03/15/05 11:04AM >>>
Hi Paul!

That something I also asked several times and no answer yet. In my 
experience, loose_route() is true if the request URI contains the "lr"

paramter (message comes from a strict router). Nevertheless, the 
loose_route function will remove its own Route: header.

I solve the troubles by allowing t_relay for all messages with to-tag 
(in-dialog).

regards,
klaus


Java Rockx wrote:
Unclassified
> Hi All.
> 
> I just don't see why loose_route() returned FALSE for this INVITE
> message. Can anyone help?
> 
> This INVITE was sent from my SIP phone to my SER-0.9 proxy. The IPs
> look funny because our SER proxy sits behind a Cisco 3600 and the
ALG
> stuff has rewritten the IPs (ie, the 10.3.0.221 address).
> 
> Regards,
> Paul
> 
> U 2005/03/14 16:01:19.932196 69.200.205.122:5060 -> 10.3.0.221:5060
> INVITE sip:9195531888 at 66.243.109.99:5060;user=phone SIP/2.0.
> Via: SIP/2.0/UDP 69.200.205.122:5060;branch=z9hG4bK2434592534.
> Route: <sip:10.3.0.221;ftag=10000000-0-1811969809;lr>.
> Route: <sip:216.229.127.60:5060;lr>.
> From: 3475626630
<sip:3475626630 at 66.243.109.99:5060;user=phone>;tag=550070175.
> To:
<sip:9195531888 at 64.152.60.6;user=phone>;tag=10000000-0-1811969809.
> Call-ID: 348926-3319820023-453493 at 66.243.109.99.
> CSeq: 1 INVITE.
> Contact: <sip:3475626630 at 69.200.205.122:5060>.
> max-forwards: 70.
> Allow: INVITE, ACK, OPTIONS, CANCEL, BYE.
> Content-Type: application/sdp.
> Content-Length:   171.
> .
> v=0.
> o=- 9528 3044 IN IP4 0.0.0.0.
> s=-.
> c=IN IP4 0.0.0.0.
> t=0 0.
> m=audio 13456 RTP/AVP 18 101.
> a=rtpmap:101 telephone-event/8000.
> a=fmtp:101 0-15.
> a=sendonly.
> a=ptime:20.
> 
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> 
> 

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