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000274_news@columbia.edu_Fri Nov 25 03:45:09 1994.msg
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From: jrd@cc.usu.edu (Joe Doupnik)
Newsgroups: comp.protocols.kermit.misc
Subject: Re: [?] MS-DOS Kermit 3.13 and PPP
Message-Id: <1994Nov25.094509.33775@cc.usu.edu>
Date: 25 Nov 94 09:45:09 MDT
References: <Czsuwq.LL1@indirect.com>
Organization: Utah State University
Lines: 43
Apparently-To: kermit.misc@watsun.cc.columbia.edu
In article <Czsuwq.LL1@indirect.com>, monty@indirect.com (Jim Monty) writes:
> I've been told by my Internet service provider that, for my SLIP account,
> I need to use "dynamic" IP addressing in lieu of "static" IP addressing.
> I've also been told that, if I switch from SLIP to PPP, I won't need to
> worry about dynamic versus static IP addressing because PPP does what I
> need it to do. I'm confused.
>
> I use MS-DOS Kermit 3.13 and its built-in TCP/IP support in tandem with
> the SLIP8250 packet driver. Sometimes I can initiate a TCP/IP connection
> to a remote host, sometimes I can't. Apparently, the reason for this
> intermittent success is that my service provider uses different terminal
> servers, some of which only support dynamic IP addressing.
>
> 1. Does MS-DOS Kermit 3.13 support dynamic IP addressing? If so, what
> _is_ "dynamic" IP addressing? And how do I implement it?
It is not a client option. It is how the other side may choose
to hand out IP addresses to clients. SLIP has no provision to supply
this via a protocol transfer so you may need to read it off the screen or
similar. Dynamic in this case means drawn from a pool of IP addresses on
some server machine.
Cicso terminal servers support bootp over SLIP and that will provide
the information. I have no idea about other host connections.
> 2. If MS-DOS Kermit 3.13 does not support dynamic IP addressing, then it
> seems I need to switch from SLIP to PPP. Correct? Is there a PPP driver
> for MS-DOS (and not Windows 3.1)? If so, where can I find this driver?
See above. PPP can do the same. However, there is no formal way
of transferring that information to the overlying TCP/IP protocol stack.
Each vendor has different methods (if any). MS-DOS Kermit can obtain that
information from the DOS Environment and from Novell's NET.CFG file for
the case of Telebit PPP drivers.
Bootp may or may not work in your environment.
> If none of this inquiry makes any sense, it's because I don't really
> understand what I'm asking. I only understand that my service provider
> can't help me--they only know and support Winsock applications. They
> only pretend to listen to me after I've uttered the word "Kermit".
Then you need a better service provider. Winsock means TCP/IP
stack, Windows or not, and thus the problem is exactly the same for DOS
and Windows.
Joe D.