Should work with network mount manager...
just make sure it aint encrpted and it should work withount problems,
i have my linus share mounted without problems!
I have a iscsi mounted via centos and network shared as a NFS
then i just use mount mamanger on my vu+ the normal way..
as for as i know this is the only way.
if someone ported (iscsiadm) to mips then it would be better...