[asterisk-bugs] [Asterisk 0013823]: [patch] Response to REGISTER is sent to wrong address when using rport

[Asterisk Bug Tracker]

A NOTE has been added to this issue. 
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https://issues.asterisk.org/view.php?id=13823 
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Reported By:                dimas
Assigned To:                
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Project:                    Asterisk
Issue ID:                   13823
Category:                   Channels/chan_sip/General
Reproducibility:            always
Severity:                   minor
Priority:                   normal
Status:                     acknowledged
Asterisk Version:           SVN 
JIRA:                       SWP-1114 
Regression:                 No 
Reviewboard Link:            
SVN Branch (only for SVN checkouts, not tarball releases): N/A 
SVN Revision (number only!):  
Request Review:              
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Date Submitted:             2008-11-02 12:08 CST
Last Modified:              2010-03-19 10:28 CDT
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Summary:                    [patch] Response to REGISTER is sent to wrong
address when using rport
Description: 
I have client behind NAT. 
when client (10.0.0.17) sends REGISTER request, it puts rport into Via
header. check_via notices that and sets SIP_NAT_ROUTE to the &p->flags[0] -
note the log line:

Sending to 192.168.7.211 : 5079 (NAT)

however the register_verify function later does 
  ast_copy_flags(&p->flags[0], &peer->flags[0], SIP_NAT); 
effectively overwritting the value with SIP_NAT_RFC3581. And finally,
check_auth send response back to client to the wrong address which is
visible from the log line 

<--- Transmitting (no NAT) to 10.0.0.17:5079 --->

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 (0119621) dimas (reporter) - 2010-03-19 10:28
 https://issues.asterisk.org/view.php?id=13823#c119621 
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The first patch only fixed REGISTER but Asterisk still was replying to
INVITEs with "poxy auth required" to the wrong address. New patch seems to
fix that but globally the problem is still unresolved because for outbound
call while Asterisk chooses right IP:port to send SIP signaling to, it uses
wrong IP for RTP data.

i will email -dev list about the issue. 

Issue History 
Date Modified    Username       Field                    Change               
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2010-03-19 10:28 dimas          Note Added: 0119621                          
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