Path: utzoo!attcan!uunet!husc6!uwvax!oddjob!ncar!ames!ucsd!ucsdhub!hp-sdd!hplabs!hpl-opus!hpccc!hp-sde!hpfcdc!hpldola!hp-lsd!hpcsla!hpcsd02!bdale From: bdale@hpcsd02.HP.COM (Bdale Garbee) Newsgroups: comp.dcom.modems Subject: Re: (A)Re: TrailBlazer and UUCP Message-ID: <480001@hpcsd02.HP.COM> Date: 3 Aug 88 19:41:46 GMT References: <311@mikros.systemware.de> Organization: HP Colorado Springs Division Lines: 33 >The only trouble is, nobody (certainly not me!) has wrapped KA9Q/4.3BSD/ >SLIP/FTP with the control software to let it autodial from one host to >another and play exactly the sort of role uucico plays now. That would be >a beginning to superseding UUCP. (Imagine, dialup SMTP, no "!" addresses...) Not entirely true on two counts. First, there was some work done somewhere on a package for 4.3 called ASLIP. I have the bits on my machine at home, but can't get there from here right now... allows for logging in to a bsd unix system, and then having the port magically become a slip link. Now all you need is an autodialer wrapper for Dos. There was a package on a local bbs called DOSMODEM that included silly little routines to send 'AT' commands at a port, and to twiddle DTR. I have thought on several occasions that combining this with one of the Carrier Detect watchdogs would be a good quick and dirty way to make this happen. Secondly, replacing uucp with SMTP over slip will require a protocol layer violation. Because uucp in inherantly a batched mechanism, it deals well with a network that is not fully connected. SMTP assumes the availability of a path from here to there whenever traffic becomes available. You'd need some sort of top-layer routine that would know when dials had been successful, and could fire off SMTP. When to hang up is a sticky question as well. A more reasonable solution might be to run the UUCP protocol, but to use TCP as a replacement for the g protocol. I haven't thought much about this. Finally, given current bits as mentioned above, I think it would be fairly easy to "nail up" dialed slip connections between a PC and a Unix host, or even between PC's via PC-Pursuit, where the connection would stay around for a good length of time... using slip as a uucp-type mechanism, particularly over toll calls, is probably unreasonable. 73 - Bdale, N3EUA