[4473] in RedHat Linux List
Re: intranet IP address
daemon@ATHENA.MIT.EDU (Ben Lindstrom)
Fri Nov 15 03:10:07 1996
Date: Fri, 15 Nov 1996 04:04:43 -0500 (EST)
From: Ben Lindstrom <mouring@sarah.djmix.com>
To: redhat-list@redhat.com
In-Reply-To: <m0vOJ1H-001G1SC@iceonline.com>
Resent-From: redhat-list@redhat.com
Reply-To: redhat-list@redhat.com
On Thu, 14 Nov 1996, Borg wrote:
> Almond Wong wrote:
> >
> > I want to set up an intranet in our company. I read from a magazine that the
> > following
> > IP address is used for intranet usage:
> >
> > 10.0.0.0 10.255.255.255
> > 172.16.0.0 172.31.255.255
> > 192.168.0.0 192.168.255.255
>
> That's what the big guys want you to believe. You can use
> any address you want. They just set up an Intranet at a local
> University, I tried it, it's nothing but Apache serving
> pages except it can be accessed only from their campus.
> The whole "Intranet" hype is nothing but they want to present
> it as a revolution in computing to make $$.
>
This is wrong. The concept of using IP address taht are set asided
for Intranet is used to encourage people to buy IP translating routers
to reduce the need for giving out Class A, B, and Cs. to every Tom, Dick,
or Harry that wants a class C at home.
We (DataBase Network Services) have a class B and class C. (Which could
the class B could have EASILY been an Intranet class B, but it was
registered before the concept of hiding multiply IP address behind a
single IP.
BTW, you can pick *ANY* IP address you want for an intranet, but think of
this problem.
If you decided that you want 199.183.24.0 w/ mask of 198.183.24.255
to be your Intranet IP set...Now you have it all your IPs resolve down to
166.205.2.50 (random IP address). Then you decide you want *YOUR*
webserver at: 199.183.24.253 ...
Now.. When you attempt to go to www.redhat.com you'll end up at *YOUR*
www server since your routers are told that 199.183.24.0 class C is
local and not an Internet address..
> I'd certainly change my opinion if someone could give me
> a couple of good reasons why I should use the 10.0.0.0
> and 172.16.0.0 and not 10.0.0.9 and 172.16.0.4.
>
You know nothing about this I see. =)
10.0.0.0 would be a CLASS "A" intranet IP set.. Thus I can use *ANY*
IP within 10.x.x.x for an Intranet. Please look at the Masks!
Please read up on your RFC before commenting. It makes you look
foolish. <grin>
BTW, Apology for using redhat's IP address as an example instead of a
random IP set, but it seem better to prove a point. =)
--
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