On Jan 15, 2008 2:02 PM, Jon Lewis <[EMAIL PROTECTED]> 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