[Asterisk-Users] Asterisk behind LinkSys NAT Routing

[Andrew Thompson]

According to the source, it goes in the general section of sip.conf:

} else if (!strcasecmp(v->name, "externip")) {
if (!(hp = gethostbyname(v->value))) {
ast_log(LOG_WARNING, "Invalid address for externip keyword: %s\n", v->value);
} else {
memcpy(&__ourip, hp->h_addr, sizeof(__ourip));
use_external_ip = 1;
}

Apparently, it expects the IP address that you want to use instead of the default (bindaddr, I guess?).

Can someone tell me, does the second line that I quoted, with the gethostbyname function mean that it will accept a hostname instead of just an IP? This would be really really good for Dynamic IP users. 

Note: I'm not savy enough to figure out how often this variable is refreshed!

This was taken from the CVS Viewer at: http://asterisk.espia-net.net/
chan_sip.c: http://asterisk.espia-net.net/horde/chora/co.php/asterisk/channels/chan_sip.c?login=2&r=1.204

-----
Andrew Thompson

----- Original Message ----- 
From: "Martin Pycko" <martinp at digium.com>
To: <asterisk-users at lists.digium.com>
Sent: Monday, November 03, 2003 12:34 PM
Subject: Re: [Asterisk-Users] Asterisk behind LinkSys NAT Routing


> It's new. It prevents asterisk from putting the private IP in the messages
> that asterisk sends with SIP.
> 
> Martin
> 
> On Mon, 3 Nov 2003, WipeOut wrote:
> 
> > Martin Pycko wrote:
> >
> > >You can port forward the 5060 SIP port and use externip keyword in
> > >sip.conf to have it working behind a NAT.
> > >
> > >Martin
> > >
> > >
> > >
> > Martin,
> >
> > Is "externip" and new parameter??
> >
> > Does it do a similar thing for the server as what "nat=yes" does for the
> > phone?
> >
> > Later..
> >
> > _______________________________________________
> > Asterisk-Users mailing list
> > Asterisk-Users at lists.digium.com
> > http://lists.digium.com/mailman/listinfo/asterisk-users
> >
> 
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