[Asterisk-Users] Maximum retries exceeded w/SIP

[Steve Totaro]

Can you disable your firewall?  i am about to start this phase of asterisk
an would like help from one newbie to another.  otherwise this newbie will
let you know how i did it.


----- Original Message -----
From: "Brad Waite" <brad at wcubed.net>
To: <asterisk-users at lists.digium.com>
Sent: Saturday, September 20, 2003 9:07 AM
Subject: [Asterisk-Users] Maximum retries exceeded w/SIP


> First of all, I'd like to send a big "thank you" to all the folks who have
> helped me get this far.
>
> Now on to the next problem.  Here's my current network setup:
>
>
> The Big I ---+--- FreeBSD FW --- * (10.0.0.253) ---- PC (10.0.0.1)
>               |
>               +--- Laptop (public IP)
>
> natd is set up with the following rules:
>
> redirect_port udp 10.0.0.253:10000-20000 10000-20000
> redirect_port udp 10.0.0.253:5060 5060
>
> * is set up with the demo/sandbox config.
>
> I'm using XLite as my SIP client and have configured it on PC to work with
*.
> I'm able to do everything I've tried so far.  I should, though - I'm on
the inside.
>
> However, when trying to make a call from the outside (via Laptop),
something's
> breaking.  I've set up the SIP proxy in XLite to be the external interface
on
> the firewall, and am able to log into the proxy without difficulty.  And
while I
> can begin conversations, I can't keep them going for long.
>
> For instance, when trying to call 500 at 10.0.0.253 (or 500 at FWpublicIP), I
get most
> of the "demo-abouttotry" message - "I am about to attempt an IAX
connection to a
> demonstration server located at Di" - at which point it gets cut off.  The
> console spits out the following error:
>
> File chan_sip.c, Line 443 (retrans_pkt): Maximum retries exceeded on call
> FB9CEC48-7CE1-4171-895B-2DF048ED5D1F at 12.252.156.250 for seqno 12384
(Response)
>
>
> Any ideas what could be going on?  My first guess is the firewall, but I
can't
> figure out why some of the packets would get through while others
apparently are
> not.  I'm at a loss.
>
> Brad Waite
> aka HankPoacher
>
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