Cifs will not mount a DFS share by using DFS "hostname"

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Dear community,

We have RHEL 5.7 server that needs to mount a MS Windows DFS share via hostname of the DFS pool. This fails.

I can mount the share via an indiviual ip-address.

If I run host command on the hostname I get about 60 responses and a warning:
;; Truncated, retrying in TCP mode.

Has anyone been able to use CIFS mount on a DFS share on RHEL 5.7, if so what rpms did you install and what specific configuration did you use?

Kind regards,

Jan Gerrit Kootstra

P.S. in parallel Red Hat support is working on this issue too, but have not found a solution.