Kerberized NFS on Mac OS High Sierra(10.13) and above

Hi All,

I am trying to configured kerberized nfsv4 on a mac os high sierra.  On a linux client, I can mount the isilon export using 'vers=4,sec=krb5' but it doesn't work on a mac os high sierra client.  The mac os client gives me the following error when I tried to use 'vers=4,sec=krb5' to mount the isilon shares:

root# mount -o vers=4,sec=krb5p nfs.brown.edu:/ifs/CS/replicated/home /mnt/ifs
mount_nfs: can't mount /ifs/CS/replicated/home from nfs.brown.edu onto /mnt/ifs: RPC prog. not avail

Has anyone gotten kerberized nfsv4 working on Mac OS High Sierra or Mojave?