nanog mailing list archives

Re: Route leak in Bangladesh


From: Nick Hilliard <nick () foobar org>
Date: Wed, 1 Jul 2015 16:11:13 +0100

On 01/07/2015 16:02, Mark Tinka wrote:
Honestly, I'm ambivalent about using the IRR data for prefix-list
generation (even without RPSL), also because of how much junk there is
in there, and also how redundant some of it really is, e.g., someone
creating a /32 (IPv4) route object and yet we only accept up to a /24
(IPv4) on the actual eBGP session, e.t.c.

We went through this a couple of years ago at INEX and ended up with a
provisioning system which allows the operator to only allow specific IRRDB
source: entries, customisable per customer.  You're right that it would be
foolish to accept any IRRDB source because a lot of them are complete trash.

Otherwise, it works incredibly well for us and has stopped innumerable
prefix leaks and other silly misconfigs.

The source code is available on github.com/inex.  Lots of IXPs use it in
production.

Nick


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