Bob Armstrong wrote: Thanks for all the feedback, guys. I guess it'll be Charon-AXP NCE :-) Did any of you guys who are using that try running DECnet and/or Multinet/UCX/etc on it? I notice that the release notes say "WARNING: Ethernet adapter, which is assigned to CHARON, must not be used by third-party programs." Does "third party programs" include the host Linux OS and can I interpret that as meaning that you need a separate, dedicated, Ethernet card for the Charon-AXP? Everything else looks pretty straightforward... Thanks again, Bob I think the reason for using dedicated NIC is very simple: it's used in non-promiscuous mode and all the changes to mac address/mcast filters made by guest system affect physical NIC and may conflict with host OS.