Excellent! This did the trick and I can now export a node to the other server.
Thanks for your help. I believe this will also solve my other thread also "*  
[ADSM-L] move nodes from one server to a different server via 
export<http://adsm.org/lists/html/ADSM-L/2012-10/msg00018.html>"

Hi,

Define server uses servername and serverpa to validate where as ping uses admin
name and pass to validate session. Make sure the admin and pass on server where
you issue the ping also is avail on the server you ping to.

Kind regards,
Karel

----- Oorspronkelijk bericht -----
Van: Dury, John C. <JDury AT DUQLIGHT DOT COM>
Verzonden: woensdag 3 oktober 2012 23:34
Aan: ADSM-L AT VM.MARIST DOT EDU
Onderwerp: [ADSM-L] define server for replication

We have 2 datacenters and plan on having a tsm server at each site. Every
client will backup all o the nodes at that site to the tsm server at that site
and then replicate their data to the server at the other site. Both servers are
running tsm 6.3.2. One is aix and one is linux. The linux server is brand new
and was just built. The aix server has been around seemingly forever and is
currently  backing up nodes from both sites.

I've read through the manual on replication and believe I understand how it
works. Just as a test, I successfully defined both servers to each other and
successfully replicated one small node from one server to the other.
For whatever reason, the servers stopped taking to each other (I can't find any
reason anywhere) so I decided I would delete the replicated node on both
servers and also delete each server from the other and redefine them.
When I try "def server <2ndserver> serverpassword=<serverpassword>
hladdress=2ndserver.blah.blah lladdress=1500" (with correct values of course),
it works successfully but when I try "ping server 2ndserver" it always fails
with
"ANR4373E Session rejected by target server 2ndserver, reason: Authentication
Failure."
I've tried making sure that all of the below were done on both servers:
set serverhladdress
set serverlladdress
set serverpassword
and tried with both crossdefine on and crossdefine off.
I can't find any logic as to why this doesn't work when I know for a fact it
worked previously. There are no nodes type=server defined on either tsm server.
The userid I am using to do the command is the same on both servers and has the
same password although I don't think that matters.  Both servers have nothing
currently set for target replication server.

The replicated node I used for testing is also still defined on the target
server and I can't delete it either because it says "ANR1633E REMOVE NODE: Node
NODENAME is set up for replication and cannot be renamed or removed.". The
replication settings on the replicated node on the target server are
replstate=disabled replmode=receive. I can't change the replmode no matter what
either.

Is anyone else successfully using replication? It worked once and hasn't since
and now as I am trying to set it all up again as if from scratch, I can't even
get the two servers to talk anymore.
Help!