Great Circle Associates Firewalls
(June 1997)
 

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Subject: RE: Class B Address
From: Ken Kempster <kempster @ monarch . rnb . com>
Organization: Republic National Bank
Date: Fri, 20 Jun 1997 13:43:09 -0400 (EDT)
To: "Stackpole, Bill" <BSTACKPO @ sla . com>
Cc: "'firewalls @ greatcircle . com'" <firewalls @ greatcircle . com>
Cc: "'firewalls @ greatcircle . com'" <firewalls @ greatcircle . com>, "'Paquette, Trevor'" <TrevorPaquette @ mcc . net>
Comments: ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Comments: Internet Message: Sender identity is not verified.
Comments: ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In-reply-to: <31557D725263D011B53A0060974FB8DC028B96 @ SLA_NT2>

Proxy servers solve this..


n 20-Jun-97 "Stackpole, Bill" wrote:
>To some extent this is true but using an Internet address internally
>that is valid externally makes it difficult to communicate between those
>two sites.  Just ask all those people who set up their Sun workstations
>using Sun's IP address.  Worked great until they got connected to the
>Internet and tried to access Sun's web site.
>
>
>"Simplify - There is no value in complexity, it's too difficult to
>manage."
>Bill Stackpole, CISSP                             
>Seitel Leeds & Associates          Voice: 206.283.4355
>2 Nickerson St.  Suite 201        Email: bstackpole @
 sla .
 com
>Seattle, Wa 98109
>
>> -----Original Message-----
>> From:        Paquette, Trevor [SMTP:TrevorPaquette @
 mcc .
 net]
>> Sent:        Friday, June 20, 1997 6:31 AM
>> To:  'Michael H. Warfield'; timh @
 usa .
 net
>> Cc:  firewalls @
 GreatCircle .
 COM
>> Subject:     RE: Class B Address
>> 
>> I disagree. Any corporation's responsibility IS to the shareholder
>> first. Without those shareholders. the company would cease to exist.
>> The
>> InterNIC holds NO authority within any corporation. Period. (Except
>> their own). They have no legal right to tell me what IP space I can or
>> cannot use WITHIN my own internal network. (The key word here is:
>> WITHIN) They CAN tell me what IP space I can and cannot use to talk
>> over
>> the Internet. These are two separate things. If someone wants to use a
>> random class B within their own network, that's fine with me.. Just
>> make
>> sure that it does not leak out to the Internet, and that you are doing
>> NAT on all connections going in/out.
>> 
>> Now, that being said.. Sticking to RFC 1597 is a excellent good idea
>> because it introduces a very good and well accepted standard that the
>> Internet community as a whole can understand and implement. 
>> 
>> NOTE: We follow RFC 1597.
>> 
>> > -----Original Message-----
>> > From:      Michael H. Warfield [SMTP:mhw @
 wittsend .
 com]
>> > Sent:      Thursday, June 19, 1997 9:22 PM
>> > To:        timh @
 usa .
 net
>> > Subject:   Re: Class B Address
>> > 
>> > Hello...
>> > 
>> > Timothy D. Hunt enscribed thusly:
>> > 
>> > > Hi:
>> > 
>> > > I have a client who, as the result of installing firewalls, is now
>> > using a
>> > > registered Class B address that they really don't need.
>> > 
>> > .. deleted ..
>> > 
>> > > My question is whether there is a market in Class B addresses, and
>> > if so
>> > > what might one be worth, so I know whether this might a viable
>> idea
>> > to persue.
>> > 
>> > > Thanks for any ideas.
>> > 
>> >    I think it would be real good idea to approach this real
>> > carefully
>> > with a wary eye to what the Internic is going to say.  I went
>> through
>> > some real hassles a couple of years ago just in changing the
>> > organization
>> > name my Class B was registered to.  If it wasn't for the fact that I
>> > had
>> > the address in active use (and still do) I think they would have
>> loved
>> > to
>> > reclaim that lovely piece of prime IP turf.  If they get wind that
>> > "Oh, this
>> > address space is no longer used", they are just as likely to come
>> back
>> > and say
>> > "Oh, you are suppose to turn those back in."  Their view, as they
>> > explained
>> > it to me, was that you don't own that address, you only have it
>> > assigned
>> > to you.  If you aren't using it, you are suppose to return it.
>> > Fortunately
>> > for me, at the time I made my organizational changes, I was using it
>> > and
>> > have kept it in use.  They STILL tried the "You can't change the
>> > organization.
>> > You have to return the address space to us and the new orgainization
>> > has to
>> > justify a new assignment" routine on me.  If I hadn't been able to
>> > demonstrate
>> > that it was in current use, I would have lost it right then and
>> there.
>> > 
>> > > P.S. What's my interest? Well the client would need additional
>> > consulting help
>> > >      to make the change.....
>> > 
>> > > P.P.S. I've already had the "For the Good of the Community"
>> > discussion with
>> > > the
>> > >        client, and the response was that their fiscal duty was to
>> > the
>> > > shareholders.
>> > 
>> >    Their fiscal duty may have little or nothing to do with it.  The
>> > Internic will tell then that they don't own it to begin with and if
>> > they
>> > no longer need it, they are suppose to return it.
>> > 
>> > > ----
>> > > Tim Hunt, Chatham, NJ, USA  e-mail: timh @
 usa .
 net
>> > 
>> >    Mike
>> > -- 
>> >  Michael H. Warfield    |  (770) 985-6132   |  mhw @
 WittsEnd .
 com
>> >   (The Mad Wizard)      |  (770) 925-8248   |
>> > http://www.wittsend.com/mhw/
>> >   NIC whois:  MHW9      |  An optimist believes we live in the best
>> of
>> > all
>> >  PGP Key: 0xDF1DD471    |  possible worlds.  A pessimist is sure of
>> > it!

|~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~|
|  Ken Kempster               kempster @
 monarch .
 rnb .
 com    |   
|  Network Systems Engineer          _\|/_                |
|  Republic National Bank            (o o)                |
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~oOO-(_)-OOo~~~~~~~~~~~~~~


Follow-Ups:
References:
Indexed By Date Previous: Dual firewall solution (??)
From: manuel . ricca @ pararede . pt
Next: Re: Firewall Checklist v0.1
From: Joe Klemmer <klemmerj @ webtrek . com>
Indexed By Thread Previous: RE: Class B Address
From: "Stackpole, Bill" <BSTACKPO @ sla . com>
Next: Re: Class B Address
From: Chris Boscolo <chris . boscolo @ sealabs . com>

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