route filtering policies (from "split b" thread)

[Mike Lieberman]

This conversation about filter leaves me scratching my head.

Some of you are making a specific assumption that only large bandwidth, large
block users must multihome between various providers. While I do not argue
that this is the most common situation, it is not the only situation.

We support one company that is currently multi-homed between two providers
and will likely be adding a third. No line is larger than a T1. The customer
barely needs a /24. So we provide the customer a /24. He then announces this
network to his other vendor as well as through us.

If this customers routes get filtered because the company's address block
isn't large enough, the only thing you are doing to placing pressure on the
customer to fake the need for more IP addresses so that their network gets
announced and carried by more networks. Am I the only one who thinks that
such filtering policies are counter intuitive?

The need to preserve IP space is at odds with the needs to hold down the size
of the BPG announcements. ARIN members needs to make a choice. I don't like
rules that force my customers to lie to me or suffer poor routing.

/* Mike Lieberman                            Mike at NetWright.Net */
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