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000006_news@newsmaster….columbia.edu _Mon Sep 29 20:01:01 1997.msg
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From: cmosley@voicenet.com (Christopher Mosley)
Newsgroups: comp.protocols.kermit.misc
Subject: Re: Kermit via PPP under DOS?
Date: 29 Sep 1997 23:22:59 GMT
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Vladimir Alexiev (vladimir@cs.ualberta.ca) wrote:
: In article <60hrre$t7q$1@news3.voicenet.com> cmosley@voicenet.com (Christopher Mosley) writes:
: > Yes, pktmux in combination with cslipper. I don't think dosppp uses
: > compression?
Basically I was giving _explicit_ instructions on how to to use mskermit as
a telnet in windows concurrently with winsock applications. So you can connect
to your very most favorite isp and use the best telnet. There is the notion
around that this cannot be done or shouldn't be done.
It's been a while since I did this but I believe the packet driver
option in trumpet winsock is ethernet not slip - pktmux is also ethernet.
Kermit needs a slip (6)interface with PPP therfore use c/slip. C/Slipper
is the best I've found. Why it is not the driver supplied with kermit
I don't know. The driver supplied/once supplied with kermit was the basis
for c/slipper - I believe.
: It doesn't have VJ header compression, yes. But I'm not sure if that's the
: only kind of compression that PPP supports. The main benefit of PPP to SLIP is
: that it's more robust, not more efficient.
: In any case the choice of PPP or SLIP is already made for you by your ISP :-)
: > (slirp can be used if you have a shell account and don't have cslip)
: If you have a shell account, why would you want to use SLIP for kermit anyway?
: > can be used to run mskermit as a telnet concurrently with winsock
: > applications.
: Once you have any kind of packet driver and/or emulation (no matter SLIP or
: PPP), you can put two stacks (kermit's and winsock) on top of the driver,
: using pktmux. With some provisos, of course.
: > kermit and cslipper makes a great telnet for arachne .
: Yes, if you use TCP/IP applications, then there is sense in putting a SLIP/PPP
: emulator on top of a shell connection, and using Kermit over that TCP/IP link.
: BTW, the emulator that's more commonly used than SLiRP is TIA. TIA has both
: SLIP and PPP emulation.
Slirp is completely free, has ppp/slip/cslip it is the uncommon choice of
the parsimonious.
: > Why not use the best instead of what is supplied.
: Agreed. But one should also understand the tradeoffs between different
: protocols and protocol driver implementations. Eg PPP is more robust; SLIP may
: be more parsimonious; EtherPPP supports VJ compression but is bulkier than
: DOSPPP.
: > It is somewhat surprising to find that dosppp will not work out of the box
: > for kermit telnet in arachne but dosppp works quite well with _other_ wattcp
: > based programs.
: PPPD (class 6 driver) works out of the box, EPPPD (class 1 driver) doesn't.