Well, I definitely understand a couple of things better than when we started. Thank you very much!
It is not, however, working. Is that likely to be the "domain=" setting, given what I said above?
The "domain" in NFSv4-speak has nothing to do with DNS. It _can_ be you DNS-domainname but it can be anything as long as client and server agrees. If they disagree you can still mount, but all files will be owned by Nobody-User and Nobody-Group if I remember correctly.
I'll try constructing a "standard" /export and set things up more exactly that way and see if anything changes.
But the errors I'm getting tend to be like:
[ddb@host00 ~]$ sudo mount host01:/ddb /mnt/ddb -t nfs4 -o rw,hard,intr,proto=tcp,port=22049 mount: mount to NFS server 'host01' failed: System Error: Connection refused.
Shield up, Scotty!
Looks like a firewall issue to me. Do you allow incoming traffic to port 22049/TCP?
Can you mount over NFSv3?
/jens