[c-nsp] How to tell what routes are not in CEF and follow DEFAULT path?

[Jeffrey G. Fitzwater]

I have 0.0.0.0 pointing to one of our ISP so that any prefix < /24 ( which we don't permit in from any ISP) would get pushed to that ISP which might have route.

I am just trying to figure out how may are being pushed to default.



Jeff F.
On Jul 2, 2013, at 4:53 PM, Saku Ytti <saku at ytti.fi>
 wrote:

> On (2013-07-02 20:19 +0000), Jeffrey G. Fitzwater wrote:
> 
>> I would like to find out what routes are NOT in my route table and therefore follow the DEFAULT path to 0.0.0.0.
>> 
>> Would  "show ip cef unresolved" work ?  I get nothing back when I run it but maybe there is nothing to see.
> 
> What you imagine is FIB covering all possibilities and then next-hop or
> null, it would not scale and makes no sense. 0.0.0.0 is branch when there
> is no matching top-level branch.
> 
> You could produce such data offline and aggregate it to maximally.
> 
> -- 
>  ++ytti
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