Re: Multiple TCPIP Interfaces... how does the system choose which one to use?

[DrFranken <midrange@xxxxxxxxxxxx>]

Routes are the magic. You can create routes for a specific target to use 
a specific local interface and further set the priority so that if one 
isn't available another can be used. You can really make it complicated, 
and hard to understand too!

However, you are setting up a scenario though that I refer to as 
*LANDMINE.  If you end up with many static routes and anything changes 
you're stuck with many static changes. Clearly some static routes may be 
needed in various situations but fewer is always better. None is the 
best number if you can make that work.

Note that the routes are used only for connections initiated from IBM i.

Also note that IBM i will NOT respond to an inbound packet if there is 
no configured route available in IBM i.  This is different (and better) 
behavior from most other O/Ss found in the average shop.

        - Larry "DrFranken" Bolhuis

www.Frankeni.com
www.iDevCloud.com - Personal Development IBM i timeshare service.
www.iInTheCloud.com - Commercial IBM i Cloud Hosting.

On 5/9/2016 2:50 PM, Rob Berendt wrote:

> There is some potential for that, but routing is not a cure all.
> Suppose I want to ftp from LparA to LparB and I want it to use interface
> 34 when it goes out from LparA.
> Now I want to use one of my Domino servers (let's say 37) and I want to
> open a DB2 connection to LparB.  That should come from 37.
>
>
> Rob Berendt