[asterisk-bugs] [Asterisk 0014961]: externip is ignored for Audio unless localnet is defined

[Asterisk Bug Tracker]

A NOTE has been added to this issue. 
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http://bugs.digium.com/view.php?id=14961 
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Reported By:                RcRaCk2k
Assigned To:                file
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Project:                    Asterisk
Issue ID:                   14961
Category:                   Channels/chan_sip/General
Reproducibility:            always
Severity:                   minor
Priority:                   normal
Status:                     assigned
Asterisk Version:           1.6.0.7 
Regression:                 No 
SVN Branch (only for SVN checkouts, not tarball releases): N/A 
SVN Revision (number only!):  
Request Review:              
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Date Submitted:             2009-04-23 14:17 CDT
Last Modified:              2009-04-24 02:31 CDT
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Summary:                    externip is ignored for Audio unless localnet is
defined
Description: 
As described in http://bugs.digium.com/view.php?id=8821 the same issue is
existing in Asterisk 1.6.0.9.

My Asterisk-Server is multihomed and have 3 public routed ip-addresses.
Two IP-Addresses assigned static and once dynamic.

I need to select the dynamic ip-address, because my ISP on the other side
accepts REGISTER, INVITE and so on only from the Interface thats connected
to my ISP.

[general]
externip=95.xx.224.157
nat=no

I didn't define a localnet property.
I tryed to switch matchexterniplocally between yes and no, but no effect.

After define an localnet-entry with 91.2xx.12.0/24 the
Audio-Setup-IP-Address works as expected.

How can i allways set my IP-Address for any communication SDP / Messaging
to the externip-Address?

Thanks.
Michael Rack.
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---------------------------------------------------------------------- 
 (0103740) RcRaCk2k (reporter) - 2009-04-24 02:31
 http://bugs.digium.com/view.php?id=14961#c103740 
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To get more hint on the network-configuration:

wan1 - IP-Address: 95.90.224.157/23 (dynamic assigned IP-Address)
wan2 - IP-Address: 91.205.12.10/30 (static assigned IP-Address)
vpn1 - IP-Address: 91.205.12.2/32 (static assigned IP-Address)

Default-Route is dynamic an will be selected by BGP4-Routing for wan2 and
vpn1. Interface wan1 is only in use to route VPN- and SIP-Traffic.

Asterisk have to send traffic through wan1 (externip=95.90.224.157). My
Linux-Policy-Routing allways routes traffic through that interface where
SRC-IP-Address is matching, else traffic is routed via default-gateway.

A feature such as "interface=wan1" were recommend. Asterisk should take
the ip-address from the interface and take this for SIP-/
RDP-Communications and ip-header creation...

The interface-name should be defined in peer-section also.

Thanks.
Michael. 

Issue History 
Date Modified    Username       Field                    Change               
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2009-04-24 02:31 RcRaCk2k       Note Added: 0103740                          
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