• Subject: Re: TCP Problem
  • From: Larry Bolhuis <lbolhuis@xxxxxxxxxx>
  • Date: Tue, 14 Nov 2000 10:30:42 -0500
  • Organization: Arbor Solutions, Inc

As you describe your specific situation Jon, it sounds like the No
Dafault Route situation. Check CFGTCP option 2 for a *DFTROUTE which
should normally be poiting at your firewall or a router between the
AS/400 and the firewall. Of course this will also prevent any other
access through the firewall to the AS/400 as well.

Also after checking your other posts on this thread, it sounds like you
know the IP address of the PC outside the firewall as it is set up
specifically for testing.  Can you PING that device from the AS/400? 
That should be easier to get working. Also load some freeware FTP server
product on the PC and then connect to it from the AS/400.  Then while
that conection is open, on the PC use the NETSTAT -n command to list all
connections. You should see a connection on Port 21 coming from the
AS/400 and it should claim to be using the public (outside) address
assigned in the NAT table for the AS/400.

Hope this helps!

 - Larry

ps My General success rate with the SonicWall product has been fair to
ptly cloudy.  Good under light loads, worse under heavy loads.

Jon.Paris@hal.it wrote:
>  >> You need to setup up a mapping of one of your "external" (official)
> addresses to match the desired "internal" (private) addresses.
> Thanks for the web references Philipp, they will come in handy.  As to the
> rest of your note I'm afraid it doesn't answer the problem as what you
> describe above is exactly what we have configured.  One of our "real"
> external addresses is mapped to one of our 192.168.... internal addresses.
> When the machine outside the wall attempts to ping any of the other PCs
> (also having 192 series IPs) it works just fine - only the AS/400 refuses
> to respond.

Larry Bolhuis
Arbor Solutions, Inc.
(616) 451-2500
(616) 451-2571 -fax
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