[Asterisk-Users] VPN's

[Francois BERGERET]

Hi men,

You have some IP ports blocked !
I use SuperFreeSwan and I encounter no problem with this kind of 
configuration.
Do you have open all ports on your IPsec gateways ?
Think to have a look to your IPchains or any kind of firewall you are 
running in your IPSec gateway.
I use shorewall and it is possible to miss some rules or to let pass few 
ports only for protections between sites.
You must describe more your configurations to see what...

Good luck !

Francois BERGERET,
f6hqz-m at hamwlan.net,
France.

----- Original Message ----- 
From: "Armin Schindler" <armin at melware.de>
To: "Peter Osborne" <pete at bookware3000.ca>
Cc: <asterisk-users at lists.digium.com>
Sent: Friday, July 15, 2005 8:35 PM
Subject: Re: [Asterisk-Users] VPN's


> On Fri, 15 Jul 2005, Peter Osborne wrote:
>> Hi All,
>>
>> I'm using Asterisk for my PBX, I have a remote office that is connected 
>> by a
>> VPN link. I am using Openswan on my side and a Linksys box on the remote
>> side. I have a Polycom IP300 on the remote side configured with a static 
>> IP
>> address. When I call the phone on the remote side, it rings and 
>> establishes
>> the call fine. The problem I am having is that the remote side can hear 
>> the
>> call find but the local side hears nothing. Because of the VPN there are 
>> no
>> firwalls in the way. Does anyone have some ideas or atleast how I can 
>> track
>> down the problem.
>
> I had the same problem with VPN using 'netscreen' (or a similar name) 
> boxes.
> When I switched from SIP to IAX protocol, it worked perfectly.
>
> I think the SIP voice UDP packets are blocked somehow, but I didn't
> investigated it further.
>
> Armin
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