[95028] in North American Network Operators' Group
Re: RPSL question
daemon@ATHENA.MIT.EDU (Marco d'Itri)
Sat Feb 17 21:21:21 2007
Date: Sun, 18 Feb 2007 02:53:33 +0100
To: nanog@merit.edu
In-Reply-To: <6d3800770702161214m11e57b33td252290c142bc235@mail.gmail.com>
From: md@Linux.IT (Marco d'Itri)
Errors-To: owner-nanog@merit.edu
On Feb 16, Andreas Voellmy <andreas.voellmy@gmail.com> wrote:
> I'm trying to learn about BGP and just ran across RPSL. I've seen
> www.radb.net and know that lots of people are registering their policies
> here. Are organizations also using these RPSL policies to compile
> configuration files for their routers (via RtConfig)? Or do they just
> maintain their RPSL policies and router configurations separately?
A few sites do, but I do not think there are many considering how hard
it is to express using RPSL a real complete configuration for a whole
network.
Since RtConfig used to be unreliable on modern Linux systems (I do not
know if the last release has been improved in this regard) I wrote my
own tool which generates as-path and prefix-list filters (and uRPF ACLs)
for customers and peers using the IRR data and local configuration files
listing the neighbors:
http://www.linux.it/~md/rpsltool-1.2.tgz
My opinion is that maintaining an aut-num object for the purpose of
generating your own configuration is pointless, but maintaining proper
route and as-set objects will greatly help your peers to build their
filters. (Yes, another of these situations where your actions will only
benefit the rest of the Internet and vice versa).
--
ciao,
Marco
