I have actually just left the study group, but my parting advice is to
confirm
Priscillas advice. The private ranges are designed for your purpose, and if
you need a class A then please use the 10.0.0.0 range. It will avoid a lot
of potential problems.
By the way Priscillas book Top Down Network Design, is very good.
I wish you all luck and success in your career and certification pursuits.
Regards
John Spencer, CCNP.
> -----Original Message-----
> From: Priscilla Oppenheimer [SMTP:[EMAIL PROTECTED]]
> Sent: Thursday, May 17, 2001 9:13 PM
> To: [EMAIL PROTECTED]
> Subject: Re: Using Public addresses as Internally [7:4835]
>
> Why not use something from the private ranges?
>
> 10.0.0.0 - 10.255.255.255
> 172.16.0.0 - 172.31.255.255
> 192.168.0.0 - 192.168.255.255
>
> Also, Class A would let you address 16 million of these devices. Do you
> really have that many?
>
> Also, quite a few large companies, universities, and service providers
> have
> hung onto their Class A address. What would happen if the users from the
> Internet that you mentioned below happened to be on the same Class A as
> you
> are using? IP spoofing protection (if you are using it) might not let
> these
> users in. Even if they got in, the responses to their packets might get
> routed internally not back to them. You could avoid these problems, of
> course, but why even risk having them?
>
> I'm sure you have your reasons and you're just trolling for a sanity
> check.
> Without more details, we have to give you the sort of canned response that
>
> it's a bad idea. ;-)
>
> Priscilla
>
> At 10:01 AM 5/17/01, Bruce Williams wrote:
> >My company wants to use public addresses from the Class A range
> internally.
> >I realize the danger if these routes got advertised on the Internet, but
> is
> >this something that is considered acceptable if it is carefully done to
> >prevent the risk of these routes being propagated out on the Public
> >Internet? These networks will be used to address equipment in a multitude
> of
> >cellular radio base stations around the country and they will only be
> >connected to our network. There will central locations where users from
> the
> >internet could access a database which will query these systems, but
> there
> >will not be a direct internet connection. I would appreciate any advice
> on
> >this.
> >
> >Thanks,
> >
> >
> >Bruce Williams
> >[EMAIL PROTECTED]
> >FAQ, list archives, and subscription info:
> >http://www.groupstudy.com/list/cisco.html
> >Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
>
>
> ________________________
>
> Priscilla Oppenheimer
> http://www.priscilla.com
> FAQ, list archives, and subscription info:
> http://www.groupstudy.com/list/cisco.html
> Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
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