Sorry, where's this archive? Somewhere in: https://www.tuhs.org/Archive/Distributions/Research/ I assume? From the description, that might be from the 'Shoppa disks'; didn't realize that was a /23 on those. V6, as distributed, had no networking at all. There are two V6 systems with networking in TUHS: https://minnie.tuhs.org//cgi-bin/utree.pl?file=SRI-NOSC https://minnie.tuhs.org//cgi-bin/utree.pl?file=BBN-V6 The first is an 'NCP' Unix (unless unless you have an ARPANet); the second is a fairly early TCP/IP from BBN (ditto, out of the box; although one could write an Ethernet driver for it). There's also a fairly nice Internet-capable V6 (well, PWB1, actually) from MIT which I keep meaning to upload; it includes SMTP, FTP, etc, etc. I also have visions of porting an ARP I wrote to it, and bringing up an Ethernet driver for the DEQNA/DELQA, but I've yet to get to any of that. Yeah, DEC manuals went through a phase-change around about the time of the /23. Old DEC manuals are wonderful; stuffed to the gills with deep technical details. Suitable for engineers... Later, they turned into manuals for 'ordinary people' - 'plug cable C1 into plug P1'. Semi-useless; although one can often glean a few useful morsels if you trawl through the entire thing. That's why I've been doing PDP-11 pages on the CHWiki which attempt to cover a lot of technical detail, in a high technical content/size way. If you need something that's not there, let me know, and I'll get to adding it. Noel