[arin-ppml] What is a "host"?

[michael.dillon at bt.com]

> > Each link local address present on the network segment constitutes a
> host.

> Because there can be 30, 50, or even 1,000 unique IP addresses on an
> interface, but, only one link local.

This is far too technically complex for something that goes into policy.
In order to figure out how this impacts a given organization you need to
get a technical person involved who can find out how many link local
addresses appear on a network segment. An ordinary person has no way
of knowing this, and could easily buy some equipment that fails this
test and therefore puts their ARIN allocations at risk.

And this does not address the main issue which is virtualization of
servers, networks, switches and routers. For instance, do virtual network
segments count?

Policy needs to be straightforward and avoid these kinds of technically
complex tests which would require ARIN to send an engineer with test
equipment to determine whether the test passes or fails.

--Michael Dillon