gated.conf

Wed Sep 10 11:36:19 UTC 1997

Thank you very much for the help. Gated has been driving me crazy, and I
do not like the gated.conf examples (and lack thereof) on any of the sites
I've looked have helped me more than the people I've talked with about it
in the last two days.

Thanks,
Joe Shaw - jshaw at insync.net
NetAdmin - Insync Internet Services
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On Wed, 10 Sep 1997, Neil J. McRae wrote:

> On Tue, 9 Sep 1997 18:02:57 -0500 (CDT) 
>  Joe Shaw <jshaw at insync.net> wrote:
> 
> > 
> > Ok, thanks to all the people who helped me out with my gated.conf
> > problems.  Although not exactly what I needed to know at the time, it did
> > teach me a lot about what I was trying to do, and the rest came a little
> > easier.  One problem I'm having, is I've got several regular expression
> > statemenst I'm trying to use to filter my routes to one of my upstream
> > carriers.  I had a t1 to this upstream to test out how much we liked their
> > network, and now we're moving up to oc-3 to them.  What we've done is
> > purchased a GRF for this link, and run the ATM into it.  I'd like to
> > duplicate the as-path access-list for the oc-3.  The Cisco config 
> > follows.
> > 
> > ip as-path access-list 31 deny _3831_
> > ip as-path access-list 31 deny _701_
> > ip as-path access-list 31 deny _114_
> > ip as-path access-list 31 deny _6302_
> > ip as-path access-list 31 deny ^4259 .*
> > ip as-path access-list 31 deny ^3817 .*
> > ip as-path access-list 31 permit .*
> > 
> > These do the job on my network, and I'm happy with them.  
> > On the GRF, I've done this to try and duplicate them:
> > 
> 
> OK Change this to:
> 
> export proto bgp as 3831 {
> 	proto bgp aspath .* origin any { all; };
> 	proto bgp aspath 3831 origin any restrict;
> 	proto bgp aspath 701 origin any restrict;
> 	proto bgp aspath 6302 origin any restrict;
> 	proto bgp aspath 4259 * origin any restrict;
> 	proto bgp aspath 3817 * origin any restrict;
> }
> 
> I think this is correct, but if it isn't working I'd
> move the the top clause to the bottom and put the others above [order is
> important, but the order isn't _yet_ documented] You should have a look
> at filter declations such as this below:
> 
> define filter "AS-3831" 
> {
> 	proto bgp aspath .* origin any { all; };
>         proto bgp aspath 3831 origin any restrict;
>         proto bgp aspath 701 origin any restrict;
>         proto bgp aspath 6302 origin any restrict;
>         proto bgp aspath 4259 * origin any restrict;
>         proto bgp aspath 3817 * origin any restrict;
> };
> 
> Then do:
> 
> export proto bgp as 6453 "AS-3831";
> 
> Note that I've not tried doing the above, but it should work, it means
> you can %include filters and makes your gated.conf files much easier to
> read.
> 
> 
> Hope this helps,
> 
> Neil
> --
> Neil J. McRae. Alive and Kicking.       Domino: In the glow of the night.
> neil at DOMINO.ORG        NetBSD/sparc: 100% SpF (Solaris protection Factor) 
>   Free the daemon in your <A HREF="http://www.NetBSD.ORG/">computer!</A>
> 
> 