Here's what I did to get DECnet running on my TOPS-20 system (Panda distribution). 1) Preconfigure the Ethernet interface with the right MAC address with ifconfig xxx ether aa:00:04:00:xx:xx 2) Set the interface in the klt20.ini file accordingly: devdef ni0 564 ni20 dedic=true ifc=e1000g1 enaddr=aa:00:04:00:2e:4d 3) In SYSTEM:7-1-CONFIG.CMD I have these lines: NODE CALHAN 19.302 ETHERNET 0 DECNET DECNET ROUTER-ENDNODE DECNET MAXIMUM-ADDRESS 1023 4) For the node database, I'm using SYS:SETNOD.EXE. Run that, then use SET NODE commands to populate the database (a "TAKE" script can be quite handy) and then SAVE to a binary database. At bootup, run SETNOD and issue the commands GET (to read the binary database) and then INSERT (to load the node database into the monitor). I believe that's it for getting it to speak DECnet reasonably well. --Marc