[asterisk-bugs] [Asterisk 0017532]: Linksys SPA94x keep-alive reply replies to wrong address

[Asterisk Bug Tracker]

The following issue has been REOPENED. 
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https://issues.asterisk.org/view.php?id=17532 
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Reported By:                jlamanna
Assigned To:                
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Project:                    Asterisk
Issue ID:                   17532
Category:                   Channels/chan_sip/General
Reproducibility:            always
Severity:                   major
Priority:                   normal
Status:                     new
Asterisk Version:           1.4.32 
JIRA:                        
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:             2010-06-18 17:41 CDT
Last Modified:              2010-06-18 19:16 CDT
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Summary:                    Linksys SPA94x keep-alive reply replies to wrong
address
Description: 
It appears as though the 489 Bad Event response to the NAT keep alive event
responds to the local address, instead of responding to the NATted
address.
This causes Linksys phones to go amber (no registration) after a short
amount of time after placing calls.
Turning the Linksys NAT keep alive off is a workound.

SIP trace:

U external.ip:9375 -> asterisk.ip:5060
  NOTIFY sip:asterisk.ip SIP/2.0..Via: SIP/2.0/UDP
10.10.30.65:9375;branch=z9hG4bK-8ebce8bc..From: "xxx-xxx-xxxx"
<sip:9497197231 at asterisk.ip>;tag=3a6a735864619b8bo0..To:
<sip:asterisk.ip>..Call-ID: 19a0bd7
  c-3cb137b7 at 10.10.30.65..CSeq: 395 NOTIFY..Max-Forwards: 70..Contact:
"xxx-xxx-xxxx" <sip:xxxxxxxxxx at 10.10.30.65:9375>..Event:
keep-alive..User-Agent:
Linksys/SPA942-6.1.3(a)-000e08d87445..Content-Length: 0....             
#
U asterisk.ip:5060 -> 10.10.30.65:9375
  SIP/2.0 489 Bad event..Via: SIP/2.0/UDP
10.10.30.65:9375;branch=z9hG4bK-8ebce8bc;received=external.ip..From:
"xxx-xxx-xxxx" <sip:9497197231 at asterisk.ip>;tag=3a6a735864619b8bo0..To:
<sip:asterisk.ip>;tag=as4a
  4466b0..Call-ID: 19a0bd7c-3cb137b7 at 10.10.30.65..CSeq: 395
NOTIFY..User-Agent: Asterisk PBX..Allow: INVITE, ACK, CANCEL, OPTIONS, BYE,
REFER, SUBSCRIBE, NOTIFY, INFO..Supported: replaces..Content-Length: 0.... 
 


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 (0123620) jlamanna (reporter) - 2010-06-18 19:16
 https://issues.asterisk.org/view.php?id=17532#c123620 
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Huh?
How is sending a response to the wrong address for a NATed host not a
BUG?
I've given you a SIP trace outlining the bug! 

Issue History 
Date Modified    Username       Field                    Change               
====================================================================== 
2010-06-18 19:16 jlamanna       Note Added: 0123620                          
2010-06-18 19:16 jlamanna       Status                   closed => new       
2010-06-18 19:16 jlamanna       Resolution               no change required =>
reopened
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