Not sure where you got the idea that the Nortel Contivity box is behind a
firewall.  In my particular situation, I am trying to use a Nortel Contivity
client behind a Gnatbox firewall to connect to a Contivity server at our
client's location.

-----Original Message-----
From: Cox, Danny H. [mailto:[EMAIL PROTECTED]
Sent: Monday, November 03, 2003 2:19 PM
To: David Morris
Cc: GnatBox Users Group
Subject: RE: [gb-users] Nortel Contivity VPN clients behind Gnatbox


Why in god's name would you put a Nortel Contivity box behind a
firewall?

It supports checkpoint and for a few bucks you can get enough license to
support a couple of VPN links. I honestly do not see any benefit;
especially since doing so would impact performance on the VPN and all
firewall based traffic as well.

As for any security concerns, I recommend you always have remote logging
so any intrusions are detected and dealt with. Also, limit what static
addresses can use VPN and on what port(s). Then you can have mobiles go
through the firewall - if you must.

Danny

-----Original Message-----
From: David Morris [mailto:[EMAIL PROTECTED]
Sent: Monday, November 03, 2003 10:21 AM
Cc: GnatBox Users Group
Subject: RE: [gb-users] Nortel Contivity VPN clients behind Gnatbox

Matt,

Another possible alternative would be to establish a shared VPN between
your developers and the client.  There are network addressing and/or
access security issues to resolve to limit access to the anointed
developers, but there wouldn't be a conflict over the number of
concurrent
users.

Still another possiblity might be to have your developers use SSH to
connect to a client site SSH server from which they could access the
client systems. Only works if you have the right OS possiblities, but as
I
recall there is an SSH daemon available as part of the MS Windows
Services
For Unix (SFU) product.

Dave Morris

On Mon, 3 Nov 2003, Matt Repko wrote:

> The decision to use ESP versus UDP is out of my hands since we are
connecting
> to a client's VPN.  However, since I have more information about the
likely
> cause, I may be able to get them to accomodate our "special"
situation.
>
> -----Original Message-----
> From: Dan Swartzendruber [mailto:[EMAIL PROTECTED]
> Sent: Monday, November 03, 2003 9:10 AM
> To: Matt Repko; [EMAIL PROTECTED]
> Subject: RE: [gb-users] Nortel Contivity VPN clients behind Gnatbox
>
>
> At 09:06 AM 11/3/2003 -0500, Matt Repko wrote:
> >Dan,
> >
> >I'm pretty sure ESP is being used.  You might see the symptoms I am
> describing
> >if you were to establish two VPN connections while at home.  I didn't
> believe
> >our developers at first but we've tested so many different
configurations,
> >that I am confident the problem is related to Gnatbox's inability to
> properly
> >route ESP traffic.  This makes sense since there are no ports numbers
> >associated with the traffic.
> >
> >I think I will pursue the multiple IP addresses option on the
client's side
> >first.
> >
> >Marteen,
> >
> >How would I configure the GB-1000 to make it appear that the
different VPN
> >sessions are originating from different static IP addresses?
>
> As a previous poster suggested: using static address mapping.  If you
have
> more
> than a handful of PCs using the client, this could be a nightmare
> though.  Is there
> some reason you're unwilling (or unable) to use UDP?  It's a far
better
> solution! (and
> is why VPN providers have been migrating that way...)
>
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