[asterisk-dev] [Code Review] Lightweight NAT Support

[Joshua Colp]

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https://reviewboard.asterisk.org/r/1756/
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Review request for Asterisk Developers.


Summary
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This patch implements extremely lightweight NAT support, specifically sending a CRLF at a defined interval to keep the NAT mapping open. It does not use this mechanism to determine if the remote server is available or not, that is the trade off.


Diffs
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  /trunk/channels/chan_sip.c 355996 
  /trunk/channels/sip/include/sip.h 355996 
  /trunk/configs/sip.conf.sample 355996 

Diff: https://reviewboard.asterisk.org/r/1756/diff


Testing
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Confirmed packet is sent at default interval as well as configured interval. Also wrote testsuite test which will be in another review.


Thanks,

Joshua

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