Re: TCP/IP Question

["Larry Bolhuis" <lbolhuis@xxxxxxxxxx>]

Simple really. Need two things.

1) On the test LPAR add a *HOST route pointing to the FTP server with the 
IP Address of the PROD server as the gateway.
2) On the PROD LPAR need to go to CFGTCP option 3 (CHGTCPA) and turn on 
forwarding.

  - Larry
 
Larry Bolhuis             IBM Certified Advanced Technical Expert:
Vice President             System i Solutions
Arbor Solutions, Inc.     IBM Certified Systems Expert:
1345 Monroe NW Suite 259   System i Technical Design and Implementation 
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(616) 451-2500 
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tkreimer@xxxxxxxxxxxxxxx 
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05/07/2009 10:57 AM
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Re: TCP/IP Question






You would have to setup the Primary partition as a "router". Problem is, I 

don't remember how/where to do that. Then you could add route to the test 
partition to send all crossover traffic to the virtual interface, with the 

primary partition as the gateway. I am fairly certain the routing 
information is out there, but don't have time to look myself.

=====================
Tom Kreimer
Network Manager
Buckhorn Inc, Milford OH



From:
Charlie Prothero <Charlie.Prothero@xxxxxxxxxxxx>
To:
"'Midrange Systems Technical Discussion'" <midrange-l@xxxxxxxxxxxx>
Date:
05/06/2009 10:10 PM
Subject:
TCP/IP Question
Sent by:
midrange-l-bounces@xxxxxxxxxxxx



Hi, all!  I have a question that seems simple but may not be:

A V5R4 iSeries has 2 LPARS, Production and Test, with a virtual Ethernet 
between them.

Each partition also has its own connection to the main network.

The Production LPAR has an ADDITIONAL direct connection (crossover cable) 
from another NIC to a PC server (will be running FTP).  That connection is 

up and working.

The main network is class B, 10.0.x.x
The Virtual is class C, 192.168.0.x
The crossover is class C, 10.100.100.x

I would like the test partition to be able to hit the PC server through 
the virtual Ethernet, but I'm not sure how to get them to route (setting a 

route on the test side to the production virtual Ethernet address wasn't 
enough).

Easy, hard or impossible?

I know I could replace the crossover cable with a switch and use three 
physical connections, but it would be cool and use fewer parts to do it 
through the virtual.

Thanks!