I've spent a good chunk of the day trying to get this working, and finally gave up and spent some time redoing my one VAX so it doesn't have to have ALL the disks online when it is used. The end result is as follows: VAX VMS 6.1 talks to Linux 2.0.34 Linux 2.0.34 talks to VAX VMS 6.1 VAX VMS 6.1 talks to RSX-11M 4.2 RSX-11M 4.2 talks to VAX VMS 6.1 Linux DOES NOT talk to RSX RSX DOES NOT talk to Linux When doing a 'set host' on RSX, Linux acks When doing a 'sethost' on Linux, RSX DOES NOT ack I don't know if I'm reading 'tcpdump' correctly, but I was using it to monitor network traffic, and it looks as if RSX is talking 'DECnet V4.0' and VMS and Linux are talking 'DECnet V4.1'. I even tried modifying in the kernel the 'segsize' and 'blksize' that Linux is talking to match what RSX is using without any luck. In fact I ran all the tests above with that configuration. Looks like my next step is to get ahold of the authors of Linux DECnet software and see if they can give me any pointers. Zane | Zane H. Healy | UNIX Systems Adminstrator | | healyzh(a)aracnet.com (primary) | Linux Enthusiast | | healyzh(a)holonet.net (alternate) | Classic Computer Collector | +----------------------------------+----------------------------+ | Empire of the Petal Throne and Traveller Role Playing, | | and Zane's Computer Museum. | | http://www.dragonfire.net/~healyzh/ |