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Darren,
You are right on. Internet RFCs stipulate that a host should not
respond to traffic from a host to which it does not have a route either
static (entered manually) or learned. OS/400 follows the RFCs as closely
as possible IP Routing is no exception. Some other 'wannabe' OSs will
simply respond back through the router (gateway) from which the packet
originated but this is a security exposure.
For your VPN solution you will need to add a route to the subnet the
clients are being assigned, typically this is to the firewall or other
VPN concentrator. On the other site you will need to add a route to the
server running the Delphi application.
- Larry
Darren McBride wrote:
Folks,
I didn't know which list would be more appropriate, so I have sent it to
both above. Apologies if one or the other is not suitable.
My problem is that I have written a set of RPG ILE service programs on the
AS/400 and a Delphi Server application on the PC. At one client site the
AS/400 can communicate perfectly with the Delphi TCP/IP server when I am on
site. When I connect over a VPN, I get a different network address (which
does not appear in the TCP/IP routing table on the AS/400) and the
communication no longer works.
I am now trying to setup the same programs on another site, and the service
program to PC communication is acting the same (ie. no traffic to the PC).
My question is, are routing table entries on the AS/400 necessary to
communicate with particular PC network address ranges (kinda like acting
like an outbound firewall).
Am I making any sense at all ?
Thanks in advance,
Darren McBride
--
Larry Bolhuis IBM eServer Certified Systems Expert:
Vice President iSeries Technical Solutions V5R2
Arbor Solutions, Inc. iSeries LPAR Technical Solutions V5R2
1345 Monroe NW Suite 259 iSeries Linux Technical Solutions V5R2
Grand Rapids, MI 49505 iSeries Windows Integration Technical
Solutions V5R2
IBM eServer Certified Systems Specialist
(616) 451-2500 iSeries System Administrator for
OS/400 V5R2
(616) 451-2571 - Fax AS/400 RPG IV Developer
(616) 260-4746 - Cell iSeries System Command Operations V5R2
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