[arin-ppml] Set aside round deux

Roger Marquis marquis at roble.com
Mon Aug 9 14:09:54 EDT 2010

michael.dillon at bt.com wrote:
>> but the real world stuff, where internal clients have a single IP and a
>> single default route that doesn't change, without localhost
>> accommodations (ie., points of failure) of any kind.
> This is just plain weird. You seem to be using "multihome" to mean something
> other than BGP multihoming.

An understandable confusion perhaps for network engineers with
exclusively backbone experience.  For the rest of us, with outside
networks smaller than /23, multihoming is done via NAT rather than BGP.

Small businesses do not want to add an exterior routing protocols to
every internal device.  They simply want to order a second hicap or DSL
line, often with a dynamic external IP, and let NAT take care of the
rest.  We're not talking about Internet servers here, just residences and
small businesses, the vast majority of end-nodes, connecting to the
Internet.  This population doesn't need to disrup persistent internal
connections for unrelated external events and it won't deprecate simple
and reliable NAT(/HSRP) solutions to accomodate IPv6's ill thought-out
"GUA everywhere" proponents.

Roger Marquis

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