That's a perfectly valid question.  The dfgw on the target hosts is set to 
the IP of a protected interface on the gnatbox. So, yes, to the best of my 
knowledge it's correct.

This is the configuration that worked before.

Thanks

At 02:40 PM 7/24/2002 +0100, you wrote:
>Also a silly question - routing is correct on target hosts...? Seen this
>before where a ping works fine, but can't telnet...
>
>-----Original Message-----
>From: Steve Leach [mailto:[EMAIL PROTECTED]]
>Sent: 24 July 2002 14:32
>To: [EMAIL PROTECTED]
>Subject: Re: [gb-users] GB 1000, 3.2.5 and double-nat
>
>
>Errmmm - sorry - that was me not reading the full text....hmmmm....
>
>
>Best Regards,
>
>Steve Leach
>Network Manager
>MI International Limited
>Eaglescliffe Logistics Centre
>Durham Lane
>Egglescliffe
>URL: http://www.askalix.com
>TEL: 01642 356205
>e-mail: [EMAIL PROTECTED]
>
>
>----- Original Message -----
>From: "Steve Leach" <[EMAIL PROTECTED]>
>To: <[EMAIL PROTECTED]>
>Sent: Wednesday, July 24, 2002 2:29 PM
>Subject: Re: [gb-users] GB 1000, 3.2.5 and double-nat
>
>
> > If I knew no better I would say it sounds like there was no alias or
>inbound
> > tunnel for the external subnet you are trying to connect to....these are
> > definitely ok - yes?
> >
> >
> > Best Regards,
> >
> > Steve Leach
> > Network Manager
> > MI International Limited
> > Eaglescliffe Logistics Centre
> > Durham Lane
> > Egglescliffe
> > URL: http://www.askalix.com
> > TEL: 01642 356205
> > e-mail: [EMAIL PROTECTED]
> >
> >
> > ----- Original Message -----
> > From: "denon" <[EMAIL PROTECTED]>
> > To: <[EMAIL PROTECTED]>
> > Sent: Wednesday, July 24, 2002 9:54 AM
> > Subject: [gb-users] GB 1000, 3.2.5 and double-nat
> >
> >
> > > We recently updated a GB 3.2.5 and made a few changes to it's
> > > filters/etc.  After doing so, users on a natted internal subnet can no
> > > longer hit external subnets via tcp which are on the GB (being passed
> > > through with IP Passthrough).  This worked fine before the upgrade.
> > >
> > > Basically, what's happening, is the traffic should be going like so:
> > >
> > > Workstation-Internal Subnet  -> Gnatbox (NAT) ->
> > >      Same GB (IP Pass (external IP)) ->
> > >          Server-External Subnet
> > >
> > > It makes the request, seemingly making the tcp connection, but then
> > > hangs.  ICMP and UDP work fine.
> > >
> > > An example, if I telnet to port 25 on one of the external subnet mail
> > > servers, it will open the telnet window and hang.  I pass it a couple
> > > carriage returns, and nothing happens. No banner - nothing.  It will
> > > eventually say the connection was lost to the host.
> > >
> > > The logs, surprisingly, don't seem to be showing anything but a standard
> > > connection opening and closing. No errors that I see.
> > >
> > > Anyone else having stuff like this?  I've tried adding "ACCEPT ANY ALL
> > from
> > > ANY to ANY" filters to the top of all the lists.  (outbound, remote
> > access,
> > > IP Passthrough Filters, etc) to no avail.
> > >
> > > Suggestions? Bug Report? :)
> > >
> > >
> > > Thanks.
> > >
> > >
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>
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