[asterisk-bugs] [JIRA] (ASTERISK-24687) Asterisk behind NAT sets wrong Contact Header

[Lukas Hauser (JIRA)]

    [ https://issues.asterisk.org/jira/browse/ASTERISK-24687?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=224635#comment-224635 ] 

Lukas Hauser edited comment on ASTERISK-24687 at 1/26/15 3:56 AM:
------------------------------------------------------------------

I now tried the same process again with asterisk 11.7.0~dfsg-1ubuntu1.
It works fine, I also attach some debug messages:
As we can see the Reg. Contact Header is exactly the same.

{code}
   asterisk11*CLI> sip show peer 799
  * Name       : 799
  Description  : 
  Secret       : <Set>
  MD5Secret    : <Not set>
  Remote Secret: <Not set>
  Context      : localsets-common
  Record On feature : automon
  Record Off feature : automon
  Subscr.Cont. : <Not set>
  Language     : 
  Tonezone     : <Not set>
  AMA flags    : Unknown
  Transfer mode: open
  CallingPres  : Presentation Allowed, Not Screened
  Callgroup    : 
  Pickupgroup  : 
  Named Callgr : 
  Nam. Pickupgr: 
  MOH Suggest  : 
  Mailbox      : 
  VM Extension : asterisk
  LastMsgsSent : 32767/65535
  Call limit   : 0
  Max forwards : 0
  Dynamic      : Yes
  Callerid     : "" <>
  MaxCallBR    : 384 kbps
  Expire       : 3545
  Insecure     : no
  Force rport  : Yes
  Symmetric RTP: Yes
  ACL          : No
  DirectMedACL : No
  T.38 support : Yes
  T.38 EC mode : FEC
  T.38 MaxDtgrm: 400
  DirectMedia  : No
  PromiscRedir : No
  User=Phone   : No
  Video Support: No
  Text Support : No
  Ign SDP ver  : No
  Trust RPID   : No
  Send RPID    : No
  Subscriptions: Yes
  Overlap dial : No
  DTMFmode     : auto
  Timer T1     : 500
  Timer B      : 32000
  ToHost       : 
  Addr->IP     : PhonesPublicIP:2048
  Defaddr->IP  : (null)
  Prim.Transp. : UDP
  Allowed.Trsp : UDP
  Def. Username: 799
  SIP Options  : 100rel from-change replaces replace timer 
  Codecs       : (ulaw|alaw|g722)
  Codec Order  : (g722:20,alaw:20,ulaw:20)
  Auto-Framing :  No 
  Status       : OK (53 ms)
  Useragent    : snom300/8.7.3.25.5
  Reg. Contact : sip:799 at 192.168.1.41:2048;line=5jw4uomf
  Qualify Freq : 60000 ms
  Keepalive    : 0 ms
  Sess-Timers  : Accept
  Sess-Refresh : uas
  Sess-Expires : 1800 secs
  Min-Sess     : 90 secs
  RTP Engine   : asterisk
  Parkinglot   : 
  Use Reason   : No
  Encryption   : No
{code}


was (Author: luka5):
I now tried the same process again with asterisk 11.7.0~dfsg-1ubuntu1.
It works fine, I also attach some debug messages:
As we can see the Reg. Contact is exactly the same.

{code}
   asterisk11*CLI> sip show peer 799
  * Name       : 799
  Description  : 
  Secret       : <Set>
  MD5Secret    : <Not set>
  Remote Secret: <Not set>
  Context      : localsets-common
  Record On feature : automon
  Record Off feature : automon
  Subscr.Cont. : <Not set>
  Language     : 
  Tonezone     : <Not set>
  AMA flags    : Unknown
  Transfer mode: open
  CallingPres  : Presentation Allowed, Not Screened
  Callgroup    : 
  Pickupgroup  : 
  Named Callgr : 
  Nam. Pickupgr: 
  MOH Suggest  : 
  Mailbox      : 
  VM Extension : asterisk
  LastMsgsSent : 32767/65535
  Call limit   : 0
  Max forwards : 0
  Dynamic      : Yes
  Callerid     : "" <>
  MaxCallBR    : 384 kbps
  Expire       : 3545
  Insecure     : no
  Force rport  : Yes
  Symmetric RTP: Yes
  ACL          : No
  DirectMedACL : No
  T.38 support : Yes
  T.38 EC mode : FEC
  T.38 MaxDtgrm: 400
  DirectMedia  : No
  PromiscRedir : No
  User=Phone   : No
  Video Support: No
  Text Support : No
  Ign SDP ver  : No
  Trust RPID   : No
  Send RPID    : No
  Subscriptions: Yes
  Overlap dial : No
  DTMFmode     : auto
  Timer T1     : 500
  Timer B      : 32000
  ToHost       : 
  Addr->IP     : PhonesPublicIP:2048
  Defaddr->IP  : (null)
  Prim.Transp. : UDP
  Allowed.Trsp : UDP
  Def. Username: 799
  SIP Options  : 100rel from-change replaces replace timer 
  Codecs       : (ulaw|alaw|g722)
  Codec Order  : (g722:20,alaw:20,ulaw:20)
  Auto-Framing :  No 
  Status       : OK (53 ms)
  Useragent    : snom300/8.7.3.25.5
  Reg. Contact : sip:799 at 192.168.1.41:2048;line=5jw4uomf
  Qualify Freq : 60000 ms
  Keepalive    : 0 ms
  Sess-Timers  : Accept
  Sess-Refresh : uas
  Sess-Expires : 1800 secs
  Min-Sess     : 90 secs
  RTP Engine   : asterisk
  Parkinglot   : 
  Use Reason   : No
  Encryption   : No
{code}

> Asterisk behind NAT sets wrong Contact Header
> ---------------------------------------------
>
>                 Key: ASTERISK-24687
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-24687
>             Project: Asterisk
>          Issue Type: Bug
>      Security Level: None
>          Components: Channels/chan_sip/General
>    Affects Versions: 13.1.0
>         Environment: ubuntu 14.04.1
>            Reporter: Lukas Hauser
>            Assignee: Lukas Hauser
>            Severity: Critical
>         Attachments: debug.log, sip-settings.log
>
>
> If asterisk is behind a statically configured NAT (e.g. with iptables), the externaddr or localnet option does not work.
> The Contact Header still contains the private IP address.
> The media_address option works.
> It also works as defined with version 11.7.0~dfsg-1ubuntu1.
> The Contact Header does not get updated in version 13.1 and 13.1.0-rc2.
> Therefore, I guess it is a bug in 13?
> Thanks!



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