[asterisk-bugs] [JIRA] (ASTERISK-20904) RFC1918 NAT Issue On Prune

[JoshE (JIRA)]

    [ https://issues.asterisk.org/jira/browse/ASTERISK-20904?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=201601#comment-201601 ] 

JoshE commented on ASTERISK-20904:
----------------------------------

This patch appears work, though I haven't tested extensively at this point.

One thing to note, when nat = force_rport,comedia it doesn't work.  When nat is set to auto_force_rport,auto_comedia, it actually does do what it's supposed to.
                
> RFC1918 NAT Issue On Prune
> --------------------------
>
>                 Key: ASTERISK-20904
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-20904
>             Project: Asterisk
>          Issue Type: Bug
>      Security Level: None
>          Components: Channels/chan_sip/General
>    Affects Versions: 11.2.0
>            Reporter: JoshE
>            Assignee: JoshE
>         Attachments: asterisk-20904-auto-nat-prune_v1.diff, rfc1918_patch.diff
>
>
> Issue is related to ASTERISK-20572, but appears to have been reintroduced in Asterisk 11.x.
> Bring up a realtime peer behind separated from the Asterisk server behind NAT.   When the peer is pruned and brought back up, the peer's external NAT address is replaced with the private IP from the contact header, if that address was present.

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