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[DNS walking]Re: using IRR tools for BGP route filtering
From: Mufti Ahmed <Mufti.Ahmed () reuters com>
Date: Mon, 26 Jun 2000 11:27:55 -0400

Hi Dana when you talk about DNS walking is this similar to the
concept of SNMP Walking?

Mufti Nayeem Ahmed
Network Systems Engineer
Market Data Networks
Reuters America Inc.

To:   Mark Borchers <markb () infi net>, Mark Prior <mrp () connect com au>
cc:   nanog () merit edu (bcc: Mufti Ahmed/NYC/US/Reuters)
Subject:  Re: using IRR tools for BGP route filtering

I plan to write a WHOIS client for the RA in Perl as part of Net::Whois.
I also plan to have a program that will walk the RA for a given AS (which is why
I need the whois client).

Eventually I also plan to add ARIN support to Net::Whois

I'd like to see a DNS walk to compare the registry to what's out there.
Not to mention finding all the bogus records that do things like list ENGLAND
as a country code (instead of UK).

----- Original Message -----
From: "Mark Prior" <mrp () connect com au>
To: "Mark Borchers" <markb () infi net>
Cc: <nanog () merit edu>
Sent: Sunday, June 25, 2000 3:05 AM
Subject: Re: using IRR tools for BGP route filtering

     Are there any plans to correlate route registry objects against
     address registry databases?

     I believe that one of the roots of this thread is the need to validate
     the legitimacy of not only routes, but registered route objects.
     Although it is too much to expect that route objects will match up
     cleanly with address block assignments at the outset, performing
     such a correlation would at least identify the scope of the problem.

It's not all that simple to do, although certainly some of the trash
could be deleted, since it's not always the organisation "owning" the
address space that announces it. Some process that compares the IR
registry view to the current routing table view might be "better" but
who would take on that task and under what mandate as its one thing to
find the problems but it's an entirely different problem to actually
fix it?


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