DFS root namespace mounting problem...

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Hi Folks,

I've been following some guides for mounting a DFS root namespace that
is known to work on Windows boxes on a fresh updated RHEL6.5 install.

I can mount the shares directly from each node within the DFS cluster
with no issues:

  [root@myserver ~]# mount -t cifs -v //node1.my.domain.com/myroot/
/share -o username=mydomainaccount
  Password:
  mount.cifs kernel mount options:
ip=192.168.10.1,unc=\\node1.my.domain.com\share,,ver=1,user=mydomainacco
unt,pass=********

  [root@myserver ~]# mount | grep share //node1.my.domain.com/share/ on
/share type cifs (rw)

But if I try and mount against the DFS root namespace it fails:

  mount -t cifs -v //my.domain.com/myroot /share -o username=
mydomainaccount,domain=my.domain.com
  Password:
  mount.cifs kernel mount options:
ip=192.168.1.1,unc=\\my.domain.com\myroot,,ver=1,user=mydomainaccount,do
main=my.domain.com,pass=********
  mount.cifs kernel mount options: ip=192.168.1.2,unc=\\my.domain.com
\myroot,,ver=1,user=mydomainaccount,domain=my.domain.com,pass=********
  Unable to find suitable address.

The IP addresses 192.168.1.1, 192.168.1.1 are the DNS / domain servers,
not the DFS node servers, leading me to believe I'm not getting
referrals to the underlying nodes.  A tcpdump host against my nodes
while trying to mount the share confirms this, indicating its trying to
mount /share from the domain servers - which is why it fails.

I've followed all the guides and as far as I can tell, this should be
fairly easy by configuring request-key.d files:

  [root@myserver request-key.d]# cat
/etc/request-key.d/dns_resolver.conf
  create dns_resolver * * /usr/sbin/cifs.upcall %k

  [root@myserver request-key.d]# cat /etc/request-key.d/cifs.spnego.conf
  create cifs.spnego * * /usr/sbin/cifs.upcall -t %k

Can someone give me some pointers as to where things could be going
wrong?  I'm no expert at DFS, but I'd like to know I'm at least looking
in the correct place.

Thanks,

AM
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