Name Resolution

[RRH at vm.nrc.ca]

Hello Netters,
Our AIX user has run into another question/problem. On our SUNs &
SGIs  the command ping vm works. The host vm has a fully qualified name
of  vm.nrc.ca . The AIX, SUN and SGI are in the di.nrc.ca domain.
However  the ping vm fails and ping vm. or ping vm.nrc.ca   The
/etc/resolv.conf has domain di.nrc.ca.  Is there any way to tell   the
AIX machine  to behave like the others or are we stuck with it?
Thanks in advance.     Ratilal Haria