nanog mailing list archives
Re: BGP Filtering
From: "Christopher Morrow" <morrowc.lists () gmail com>
Date: Tue, 15 Jan 2008 22:05:46 -0500
On Jan 15, 2008 2:02 PM, Jon Lewis <jlewis () lewis org> wrote:
On Tue, 15 Jan 2008, Ben Butler wrote:I want a filter that will automatically match the shorter prefixes that match any longer prefix, once I can match them I can drop them. I don't want to manually configure a static prefix list for lots and lots and lots of reasons. If the longer prefix disappears from the route table I want to stop filtering the shorter prefixes - automatically.This was talked about / requested several months ago on cisco-nsp. IIRC, the thread ended along the lines of don't hold your breath. Implementation of this sort of feature is very icky (lots of details you may not be considering) and why should cisco spend time writing this code when they can sell you a bigger router instead?
Jon, didn't you start: http://www.wibble.co.uk/archives/nanog/2007/msg05265.html and Ben, is this sort of what you are looking for? Or would it accomplish the same thing for you? -Chris
Current thread:
- RE: BGP Filtering, (continued)
- RE: BGP Filtering Ben Butler (Jan 15)
- Re: BGP Filtering Dave Israel (Jan 15)
- Re: BGP Filtering William Herrin (Jan 15)
- Re: BGP Filtering Dave Israel (Jan 15)
- Re: BGP Filtering Deepak Jain (Jan 15)
- RE: BGP Filtering Ben Butler (Jan 15)
- RE: BGP Filtering Ben Butler (Jan 15)
- RE: BGP Filtering Mike Walter (Jan 15)
- RE: BGP Filtering Ben Butler (Jan 15)
- RE: BGP Filtering Jon Lewis (Jan 15)
- Re: BGP Filtering Christopher Morrow (Jan 15)
- Re: BGP Filtering Jon Lewis (Jan 15)
- Network Operator Groups Outside the US Rod Beck (Jan 16)
- Re: Network Operator Groups Outside the US Suresh Ramasubramanian (Jan 16)
- Re: Network Operator Groups Outside the US Fredy Kuenzler (Jan 16)