[Asterisk-Users] REMOVE

[cisb]

----- Original Message -----
From: "Dan" <dtoma at fx.ro>
To: <asterisk-users at lists.digium.com>
Sent: Thursday, June 26, 2003 10:19 AM
Subject: Re: [Asterisk-Users] Asterisk, IAX and NAT issue


> Hi Simon,
>
> > Is your firewall redirecting incoming connections on n.n.n.n:5036 to
> > the Internal Asterisk instance?  If you don't see any messages on the
> > inside Asterisk box it's unlikely.
> More than that... Asterisk is configured as DMZ in the NAT router, so it
is
> fully exposed to the internet.
> More, from outside I can register a SIP phone to the internal Asterisk and
> use it for placing calls.
>
> >
> > The best thing to do is probably do a tcpdump -n -i eth0 host n.n.n.n
> > and host x.y.z.u (or similar) and try and diagnose what is actually
> > being sent over the wire.
>
> This is what I get on the internal PBX when trying to remotely connect
using
> IAX protocol, by dialing extension 103.
>
> 16:17:29.382604 193.221.214.29.5036 > 192.168.33.99.5036: udp 121 (DF)
[tos
> 0x10]
> 16:17:29.395536 192.168.33.99.5036 > 193.221.214.29.5036: udp 12 (DF) [tos
> 0x10]
> 16:17:29.396791 192.168.33.99.5036 > 193.221.214.29.5036: udp 30 (DF) [tos
> 0x10]
> 16:17:29.682915 193.221.214.29.5036 > 192.168.33.99.5036: udp 12 (DF) [tos
> 0x10]
>
> 192.168.33.99 is the PBX behind NAT
> 1933.221.214.29 is the PBX directly connected to the Internet
>
> so the packets goes to the right place, but then...nothing.
>
> Dan
>
>
>
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