tobold.org

correct • elegant • free

△ uk.net △

◅ Clergy, the Internet, and "demon"

Registering a domain... ▻

Routing on subnets?

In article <D0JpJA.6uF@cix.compulink.co.uk>, David Leevers
<dal@cix.compulink.co.uk> wrote:
>Can we (when we establish a full Internet access in a few months) get our
>address parsed and routed by sub- net, ie by XX.XX.xx.yy, thus permitting
>                                                   ^^
>each site to have their own Internet connection (via Pipex, EUNet or
>whomever they find most cost effective)?

Yes, so long as you connect only to Internet service providers that
talk BGP4 to all their peers.  (We do; I think EUnet do; I'd be very
surprised if BTnet don't; Demon didn't last time I looked.)  BGP4
is necessary, because it is the only exterior routing protocol that
supports CIDR (Classless Inter-Domain Routing, aka `supernetting', see
RFC 1519).

However, in the interests of good `net citizenship' it would be much
better to hand back your class B, and for each of your sites to obtain
address space from whichever provider they connect to.

Tim.
--
Tim Goodwin        | "System V wasn't going to go away just because POSIX
Public IP Exchange | said so.  (More's the pity.)" -- Henry Spencer

Original headers:

From: tim@pipex.net (Tim Goodwin)
Newsgroups: uk.net
Subject: Re: Routing on subnets?
Date: 9 Dec 1994 16:21:44 -0000
Organization: PIPEX, 216 Science Park, Cambridge, England
Message-ID: <3ca06o$f58@pipe.pipex.net>
References: <D0JpJA.6uF@cix.compulink.co.uk>

△ uk.net △

◅ Clergy, the Internet, and "demon"

Registering a domain... ▻