RE: SNA over IP communication

["Sims, Ken" <KSIMS@xxxxxxxxxxxxxxxx>]

Hi Chris -

>TCP/IP is almost never a problem , the real pain starts when 
>the SNA ( encapsulated ) needs to be migrated.

I assume that you are talking about using AnyNet support for SNA over
TCP/IP.

>My big question is : where is the relation defined between the 
>SNA definitions and the IP-address ?
>Depending on the source , I get following answers :
>1) That relation must be manually entered in the router.
>2) That should be done on the AS/400.
>3) Nothing, it's automatically taken care of.
>4) No clue ( most popular one :-( )
>
>The first answer was given to me by Software Support from IBM.
>Having a lot of faith in that person, 
>I assumed that his answer was the correct one.

You have faith in an answer from IBM????  <G>

The correct answer is #2.  The router needs to be able to route TCP/IP to
the IP address in question, but that's all.  (Routing SNA directly rather
than using AnyNet *does* require router configuration.)

Besides the normal SNADS configuration, there are two extra pieces for
AnyNet:

1. a host table entry for IP address which has a host name of the format:
[hostname].[networkname].SNA.IBM.COM
where [hostname] is the name you want to call this IP address by (you'll
probably also want to have a host name entry for this IP address using just
[hostname]), and
where [networkname] is the remote network name.  This is probably the same
as your local network name, which you can see with DSPNETA.

2. entries in the QAPPNRMT configuration list where the Remote Location is
the same as [hostname], and the Remote Control Point is TCPIP.  The Remote
Network ID, Local Location, and Control Point Net ID can be usually be left
as *NETATR, which will cause the information from DSPNETA to be filled in.
If the remote network name is different from the local network name, enter
the actual remote name.  In either case the Remote Network ID should be the
same as [networkname] when you are done.

Ken
Southern Wine and Spirits of Nevada, Inc.
Opinions expressed are my own and do not necessarily represent the views of
my employer or anyone in their right mind.

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