DECNet?
If so, note well that current versions of OpenVMS have two kinds of DECNet - Phase IV, which is straightforward, and Phase V, which is not.
To complicate matters further, DECNet Phase V has an emulation mode for DECNet Phase IV, so you always have to check if what you're talking to really does Phase IV or if it's just a Phase V box playing dumb.
Peter
Shill For Hire
[link|http://www.kuro5hin.org|There is no K5 Cabal]