[asterisk-bugs] [JIRA] (ASTERISK-20724) natdetected flag being set when VIA doesn't include port in address

[Michael L. Young (JIRA)]

Michael L. Young created ASTERISK-20724:
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             Summary: natdetected flag being set when VIA doesn't include port in address
                 Key: ASTERISK-20724
                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-20724
             Project: Asterisk
          Issue Type: Bug
      Security Level: None
          Components: Channels/chan_sip/General
    Affects Versions: 11.0.1
            Reporter: Michael L. Young


While troubleshooting another issue, came across this message in the debug log:

{noformat}
[2012-11-25 19:07:25] DEBUG[13375][C-00000007]: chan_sip.c:17910 check_via: NAT detected for 216.115.69.144:0 / 216.115.69.144:5060
Sending to 216.115.69.144:5060 (NAT)
{noformat}

Upon looking at the code in check_via, I discovered that if the port is not set on the address in the VIA header, the default SIP port is not being set on the tmp ast_sockaddr used to check if the requesting UA might be behind NAT.

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