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  1.  Home
  2. CODE400-L
  3. November 2001

RE: Network connection-restatement (sorry)-server can't find client

Mike, I appreciate your feedback.  Down here in Tampa, I work from home on
those winter days when the 8 mile (4 miles by the water) bike ride to work
is simply too hard, or I'm bringing the doggies.

Dialing up into a "standard" ISP...more details in my response to Hak's
comments.

Thanks again,
Reeve

-----Original Message-----
From: code400-l-admin@midrange.com
[mailto:code400-l-admin@midrange.com]On Behalf Of hockings@ca.ibm.com
Sent: Friday, November 23, 2001 8:54 AM
To: code400-l@midrange.com
Subject: Re: Network connection-restatement (sorry)-server can't find
client


This is a multipart message in MIME format.
--
[ Picked text/plain from multipart/alternative ]
Hi Reve,

CODE _should_ work just peachy with your configuration.  As Hak indicates
it is most likely just a configuration exercise :-).  Currently I'm
connected to work (in the dining room) via VPN through a wireless access
point to my local (house) LAN which is connect to the internet via cable
through a LinkSys router (Similar to your NetGear I expect).  I can run
WebFacing, edit files, whatever I've tried all works (which is simply
marvellous on winter days when the drive to work is intolerable).

I don't think that CODE/400 needs to "know" you IP address does it?  For
me the current local address on the machine is 192.168.1.100 as supplied
by the LinkSys DHCP server.  However, external to the LinkSys it is
something entirely different, in your terminology 209.50.yadda.yadda.  I
can see the real address by going to an external site that will return the
IP address it sees like http://www.hockings.net/java-server/index.jsp.

Now, if you are _NOT_ using something like VPN to connect then the
firewall at the AS/400 end may be deflecting any attempt that you might
make to connect and that may have to be configured appropriately.  I
suspect that the port(s) that CODE uses to connect to the host are
documented somewhere :-).  Should you be using the old STRCODE
communications then I suspect that you will need to configure your NetGear
to forward the specified port connection request to a designated machine.

When you use a dial-up connection are your dialling in to an external ISP
or  to your AS/400 (or some access point on the same intranet?

Kind regards,

Mike

Mike Hockings, P.Eng.
WebSphere Development Tools for AS/400  -  CODE/Designer & WebFacing !
IBM Canada Ltd. Laboratory
hockings@ca.ibm.com
voice 905 413 3199

Please respond to code400-l@midrange.com
Sent by:        code400-l-admin@midrange.com
To:     code400-l@midrange.com
cc:
Subject:        Re: Network connection-restatement (sorry)-server can't find
client


When the compile is done the host will execute a "calls back" to the
client.  There are two possible reasons we can think of that might be
causing this problem.

1.  One of the firewalls (either the RT314 or the one between the cable
   modem and the 820) is not allowing the call back to pass through.
              So you can check which port the "call back" is using and
make
   sure that the firewall allows the connection. You can probably get the
   port  information from your firewall tools.

2.  The host code is not getting the correct address to do the call back
   (and in fact is trying to connect to a different client.)  If you go to
   a DOS window and run ipconfig then you will see all network addresses
   that the Windows machine is using.  If there are multiple addresses
   listed then the first one must be the address that should be passed to
   the server for the "call back".  On Windows 2000, I think that you can
   go to the Network Connections->Advance Settings to move your
workstation
   address up and down.

You might want to check if the feed back works by STRCODE and then on
   another OS400 session try the command:

   CALL QCODE/EVFCFDBK PARM( '37' 'Y' 'OS400' '<LOCAL> CODEEDIT
   "<OS400>lib/file(member)"' ).
              Change QCODE to QDEVTOOLS if you are on V5R1 OS/400.


   Hak Lui
   AS/400 AD, IBM Canada Ltd.
   e-mail: haklui@ca.ibm.com


"Reeve Fritchman" <reeve@ltl400.com>@midrange.com on 11/21/2001 03:06:47
PM

Please respond to code400-l@midrange.com

Sent by:  code400-l-admin@midrange.com


To:   "CODE400-L@midrange. com" <CODE400-L@midrange.com>
cc:
Subject:  Network connection-restatement (sorry)-server can't find client


I'm having trouble getting a CODE/400 server connection when working
through
my network connection.  I can't get the error list back when I submit a
compile; everything else (LPEX, Verify, GUI prompting, etc.) works fine. I
know I could Verify first, but basing on caching performance, it's faster
to
compile.

I have two systems connected to a Netgear RT314 Gateway Router (no
ROTFLYAO,
please) and then into a cable modem up to the 820 via a firewall.  The
RT314
provides NAT and some firewall protection.  The IP address seen by the
RT314
is not fixed (today it's 65.34.yada.yada); within the LAN, the RT314 is
192.168.0.1 and the other systems are ".2" and ".3".

When I use a dial-up connection (without the RT314), everything works fine
(because CODE/400 knows my IP address).  I think this shows the server end
is not causing the problem.

I assume the RT314 is the issue.  The iBox is giving me EVF4000, "A remote
host refused an attempted connect operation."  (3425).

I'd be grateful for any help...

Thanks,
Reeve

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