[c-nsp] RTBH - anyone using this?

[Roland Dobbins]

On Jan 23, 2008, at 2:15 AM, Drew Weaver wrote:

> Question: There is simply no reason to be exporting the routes from  
> the edge routers to the triggers if I am reading this document  
> correctly. Rather than using prefix or filter lists, is there a  
> handy way to make the edge routers not send routes to the trigger  
> server (using a command in that peer-group?)

I set up outgoing prefix-lists on the edge routers so that no routes  
are sent down, and incoming prefix-lists on the trigger, too, just to  
be sure.

> The issue I am having is kind of strange and I’ve never ran across  
> it before like many of my issues…..

I always set local-pref on routes received from the trigger to be  
high, and they end up being the preferred routes for the prefixes in  
question, which ends up triggering the recursive lookup to null0 and  
thus the packet drops.

-----------------------------------------------------------------------
Roland Dobbins <rdobbins at cisco.com> // 408.527.6376 voice

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