On Tue, 22 Sep 2015 09:08:01 PM Peter Ross wrote:
> How the recall gets transmitted is still a mystery to me. If there is no
> daemon, it must be "inbound" using the TCP port 2049? No, that would cause
> real trouble when interacting with other NFS servers. Or??

It's set via a kernel module parameter I believe - see:

http://comments.gmane.org/gmane.linux.nfsv4/11560

Sorry for brevity, I've developed a nasty cough and am heading for some rest
now.. :-/