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North American Network Operators Group

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RE: dsl providers that will route /24

  • From: Tim Winders
  • Date: Wed Mar 28 20:29:09 2001

Hash: SHA1

> 	I think we're in 99.9% percent agreement, which is probably
> about the best you can expect between two human beings. Let me respond
> to one thing:


> 	What happens if one of your customers is multihomed, loses his
> link to you, and tries to reach another one of your customers through
> his other ISP? Or do you make exceptions to this filter for multihomed
> customers? (The problem is, with VPNs and mobile IP schemes, every
> customer is potentially multihomed.)
> 	IMO, this is something best done on the customer's routers.
> Obviously, for your own 'local' IPs, you are the customer.

Again, agreed.  I only ingress filter on my own addresses, RFC918 and a
long list of other addresses which are "bad".  I wouldn't filter out a
customer's addresses.  I would give them instructions on how to do so and
why it's a good thing.  :-)

=== Tim

        Tim Winders, MCSE, CNE, CCNA
        Associate Dean of Information Technology
        South Plains College
        Levelland, TX  79336

        Phone:	806-894-9611 x 2369
        FAX:	806-894-1549

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