andrew@mitisft.UUCP (09/02/87)
in article <8708311459.AA25432@oswego>, beadel@oswego.UUCP (Edward F. Beadel, Jr.) says: > Does anybody know of a 4.3( or 4.2)bsd version that has been hacked > to allow dialup use? We are having "campus political problems" getting a We have had such a system running internally here at Convergent Technologies for about a year. In that time, it has run under both 4.2 and 4.3 based CTIX (Convergent's UNIX), and will soon be released with our System V.3.1 Streams / 4.3 BSD (with RFS & NFS) product. If you cannot find a non-commercial source, I can put you in touch with someone here and maybe we can get you one of the earlier mbuf-based versions. However its possible you'd have to buy it, either with hardware from us (or one of our customers) or possibly from Lachman Associates. I intend to post some more detailed experiences/queries regarding address selection and routing in this environment sometime in the near future, when I have more time to work on this project... Andrew Knutsen (408) 435-3623
stev@VAX.FTP.COM (01/26/89)
there is an IETF working group dealing with this, but i havent seen much on it in awhile. this will be in the public domain, and several vendors have expressed an interest in supporting the resulting spec (if it meets their needs). stev knowles stev@ftp.com
ron@ron.rutgers.edu (Ron Natalie) (01/27/89)
I missed the last meeting, but I believe the group has decided that the protocol for doing IP over serial lines (including dialups) will not be the existing SLIP protocol. _Ron
andrew@mitisft.Convergent.COM (Andrew Knutsen) (01/28/89)
Dial up SLIP is also available on the Convergent S/Series, under system V.3. Lachman Associates has the code, and may sell it; also, they may have sold it to SUN. This version is dial-on-demand, and uses HDB uucp dialing code. Andrew Knutsen Convergent
wisner@cheops.cis.ohio-state.edu (Bill Wisner) (01/30/89)
A protocol called SLFP, developed at MIT, has been added to the Atari ST port of KA9Q TCP/IP by a University of Michigan person, and has been implemented on Michigan's MERIT network. It allows dial-up Internet access like SLIP, but with an interesting twist. When an ST with KA9Q dials into MERIT, both ends automatically begin talking SLFP. But MERIT dynamically allocates the ST an IP address. The address assigned is different every time a connection is made. I'm told that there are plans to eventually allow for dynamic DNS updates: when a host connects and is told its IP address, PTR and A records with a TTL of zero will be added to a nameserver for the duration of the connection. When the connection is broken, PTR and A records will be removed, leaving only an MX record.
jrd@STONY-BROOK.SCRC.SYMBOLICS.COM (John R. Dunning) (01/30/89)
Date: 29 Jan 89 19:20:34 GMT
From: cheops.cis.ohio-state.edu!wisner@tut.cis.ohio-state.edu (Bill Wisner)
A protocol called SLFP, developed at MIT, has been added to the Atari ST port
of KA9Q TCP/IP by a University of Michigan person, ...
Cool. Any idea offhand where I might find source etc? (For both ends)
Is the U of M person Howard Chu?
Thanks for any info.johnan@ism780c.isc.com (John Antypas) (01/30/89)
> A protocol called SLFP, developed at MIT, has been added to the Atari ST port > of KA9Q TCP/IP by a University of Michigan person, ... Could you send me the UofM info when you find it? Thanks. -- John Antypas -- Interactive Systems ...!{haddock, uunet, sdcrdcf}!ism780c!johnan johnan@ism780c.isc.com All Statements (C) 1989 John Antypas -- Interactive can't have them! They're mine! Do you hear???? All mine!!
zeeff@b-tech.ann-arbor.mi.us (Jon Zeeff) (02/03/89)
In article <32958@tut.cis.ohio-state.edu> Bill Wisner <wisner@cis.ohio-state.edu> writes: >A protocol called SLFP, developed at MIT, has been added to the Atari ST port >of KA9Q TCP/IP by a University of Michigan person, and has been implemented >on Michigan's MERIT network. It allows dial-up Internet access like SLIP, >but with an interesting twist. When an ST with KA9Q dials into MERIT, both >ends automatically begin talking SLFP. But MERIT dynamically allocates >the ST an IP address. The address assigned is different every time a >connection is made. Howard Chu (umix!hyc), myself, and Bill Doster (Bill_Doster@um.cc.umich.edu) have worked on slfp with ka9q. The net result is that MERIT users possessing a modem and a PC can ftp files and use telnet. The files were available for anonymous ftp from umix.cc.umich.edu. Non internet people might try a public access unix system available at (313) 994-6333. -- Jon Zeeff zeeff@b-tech.ann-arbor.mi.us Ann Arbor, MI mailrus!b-tech!zeeff
martinea@CRC.SKL.DND.CA (Mike Martineau) (02/24/89)
I remember seeing a number of messages regarding dial up slip in the past month. I suddenly have an urgent need to get more info re: dial up slip but, unfortunately, did not save any of the previous mail messages. Can someone point me in the right direction? Thanks, Michael Martineau Software Kinetics Ltd. martinea@crc.skl.dnd.ca (192.5.204.1)
jqj@HOGG.CC.UOREGON.EDU (04/23/89)
It has been suggested (including on this forum) that one could use dialup SLIP to create backup paths in leased-line wans. If an intermediate router in my regional network went down, I could just automatically call past it and temporarily use a SLIP connection while the primary was being restored. Is anybody (besides me) actually experimenting with this use of dialup SLIP? Has anybody given any thought to how to handle routing in such an environment? There seem to be two possible models: (1) The CSnet "dial on demand", in which the SLIP route is claimed to exist all the time, but is only active while traffic is present. This has the disadvantage that you can't employ a routing protocol like RIP that depends on routinely sending reachability data across the link. CSnet, I gather, uses only static routes. (2) Create and advertise a route when needed. This requires that network management software notice that the primary route is gone and initiate a connection. Since network management has noticed the loss of connectivity, presumably user applications have too.
jeffery@jsheese.FIDONET.ORG (Jeff Sheese) (04/23/89)
In an article of <23 Apr 89 13:32:27 GMT>, jqj@HOGG.CC.UOREGON.EDU writes: >It has been suggested (including on this forum) that one could use >dialup SLIP to create backup paths in leased-line wans. If an >intermediate router in my regional network went down, I could just >automatically call past it and temporarily use a SLIP connection while >the primary was being restored. > >Is anybody (besides me) actually experimenting with this use of dialup >SLIP? Contact mju@m-net.UUCP. He and several others have modified the source for KA9Q software to use dialup SLIP with the Merit network in Ann Arbor and Detroit Michigan. -- Jeff Sheese - via FidoNet node 1:109/116 UUCP: ...!netsys!jsheese!jeffery (Send all replies to netsys!jsheese!jeffery)
Dave_Katz@UM.CC.UMICH.EDU (04/24/89)
>Contact mju@m-net.UUCP. He and several others have modified the source >for KA9Q software to use dialup SLIP with the Merit network in Ann >Arbor and Detroit Michigan. Merit does not provide dial-up SLIP, but instead provides dial-up SLFP (the MIT/PCIP serial protocol). SLFP provides the dynamic IP address assignment desirable for dialup lines. We offer SLIP for hardwire lines only. Dave Katz Merit Computer Network