NFS mounts on R6000

[Jim Hudgens]

  We have a 9005? version of AIX on a loaner R6000 on which we have
been unable to import NFS filesystems.  We have a server running 
ULTRIX 3.0 and when we try:

    ibm# mount -v nfs dechost:/dechost/a /dechost/a
    mount: server dechost not responding: RPC: Authentication error; 
	    why = Invalid client credential
    nfsmnthelp: dechost: 1201-013 Permission denied
    mount: giving up on:
	    dechost:/dechost/a
    1201-013 Permission denied

Tried this as well with a Sun3/60 (exporting to ibm). 
Same general error message.  

The above server handles suns, decs, irises, etc. just fine.  portmap is 
running on the ibm, and ps gives the following:

ibm# ps ax
        PID STAT   TTY  TIME COMMAND
       3770   S       ?  0:00 portmap
       4284   S       ?  0:23 inetd
       5059   S       ?  0:00 biod
        ....
       6344   S       ?  0:00 biod
       6602   S       ?  0:00 rpc.stat
       6859   S       ?  0:00 rpc.moun
       7117   S       ?  0:00 rpc.lock
       7635   S       ?  0:00 qdaemon

ftp/rlogin/telnet work fine on the ibm in both
directions.  the ibm is in the export file on 
both the sun and dec machines.  It is in the hosts file as well.  
I've double checked everything...  I even set up a DEC vs2000
in parallel to mount the above hosts, and it works correctly.
I'm stymied.  Anyone willing to mail (or post) some suggestions?

void *standard_disclaimer() { /* The above represent my personal views */ }
Jim Hudgens			Supercomputer Computations Research Institute
hudgens at vsserv.scri.fsu.edu