> Date: Mon, 22 May 2000 00:24:22 -0500
> From: "Samuel W. Heywood" <[EMAIL PROTECTED]>
> Subject: Re: Problem with starting EPPPD
> On Mon, 22 May 2000 03:33:19 -0400 (EDT), Thomas Mueller wrote:
>>> Real BOOTP is run on the server. To see if your server is using
>>> it, use PPPD and tcpinfo. In most cases, it will fail.
>> I suppose most ISPs would be stumped if asked whether they had real BOOTP.
> Hey guys:
> Very interesting info here. Could someone please expand on this point
> and please post an example of how to do this? What is tcpinfo?
> Also, please explain what is meant by "real BOOTP", as opposed to psuedo
> BOOTP or simulated BOOTP, or whatever other "non-real" kinds as may
> exist. Please excuse me if my questions may seem ignorant or stupid.
> I confess that I am very lacking in knowledge as to how BOOTP is supposed
> to work. The only thing I think I know about BOOTP is that it is one of
> several kinds of various processes by which an IP number may be
> dynamically assigned.
> Sam Heywood
Well...
Bootp is a protocol that requiris some information of your computer (can
be the ethernet adress in lan,tcp/ip, or some file that verifies the
Id's of your pc (used for those VERY strange internet providers that
have the nice idea of provide bootp instead of the Ms-registered
request)) And replies with an IP number for you, The gateway used for
the translation of Unix-msdos codes or something else, the netmask
required, the network transmision ip code (tipically 255.255.255.255),
and the ever-need-and-useful DNS server (ip code and name) and , in
mosts cases your pc's name (in case that your pc have an account with
dns name :-)...
There are 2 types of bootp servers....
#1 Real Bootp servers: usually unix machines that works for this sole
purpose....
#2 virtual Bootp servers: there are 2 types:
A.-) virtual servers: are the pc's that aren't SERVER (just a common
IBM pc or macintosh machine) that have installed a program to emulate an
bootp response...
B.-) false Bootp server: I'ts a program that requires that your pc
LOADS a program BEFORE MS-DOS, run it and the LOADS MS-DOS into your
system... (like dos netboot by G. khulmann) This is used commonly in
universities that doesn'like the hackers but loves have problems with
programs that never will run on this type of pc... WHY???...
Remember i said "loads a program BEFORE MSDOS"??... this means that a
program are running and acrive before ms-dos, and it will never reports
that are using memory, resources, etc from the machine, and ms-dos
thinks that the memory used by the "false bootp" program is free for
other programs!!! (if any program overwrites this sector of memory, the
computer will crash) especially any version of windows (maybe this bug
is not so bad :-)....
Any disvantages of Bootp server???
Almost none... exept if the DNS server is up and bootp server is
down....
Hope this can be informational....
J.
[EMAIL PROTECTED]
