On Wed, 11 Jan 2012 16:32:01 -0500, you wrote: The TOPS-20 host is presently available via IP - 74.143.35.91:1023. In any case, my knowledge of TOPS-20 is slowly growing *ex nihilo* ... I loaded the tapes from bitsaver.org and believe that I am running the correct monitor... (unfortunately, the docs that I've found don't always correspond to the version of software I've chosen to run). I'm sure there may be a newer DECnet tape out there; however, the latest I could find (at the time) was v4, I believe... in any case, one of my biggest issues is hardware knowledge -- running `netgen` does not seemingly inquire about the [equivalent] NIC... As pointed out in other messages, NETGEN is not the right tool for this task. IIRC DECnet-10 and -20 share a common code base with a good deal of conditionals, but anyway the idea is the same. On TOPS-10 once the right monitor is running the job is almost done because things like node name and address are built into the monitor executable (maybe TOPS-20 is a little more flexible on this side) so there is no need to do anything more. http://pdp-10.trailing-edge.com/BB-PBQUA-BM_1990/01/7-documentation/install… At the above link (hope it does not get truncated) there is something that could be useful: in appendix C there is a reference to the AN-MONDCN.EXE that maybe is the monitor you are looking for. Check the following tape: http://pdp-10.trailing-edge.com/tops20_v7_0_tcpip_distribution_tape/index.h… This other tape contains what appears to be the DECnet-20 distribution: http://pdp-10.trailing-edge.com/BB-H240E-BM_1985/index.html The above tape contains a DECNET.DOC file that states the following: | 1.8 DECnet-20 Operation | | DECnet-20 consists of the monitor and front-end components, and | user-mode utilities. DECnet-20 resides within the TOPS-20 monitor. | The DN20 is not required for DECnet communications over the NIA20 and | the CI20. So maybe you just need to find the right monitor and user-mode utilities. :) HTH, G.