loopback0 vs. null0

From: Richardson, Cheryl (cheryl.richardson@xxxxxxxx)
Date: Mon Jul 31 2000 - 10:19:46 GMT-3


   
Typically, I have seen black hole routes configured as:

ip route 10.0.0.0 255.0.0.0 null0

Recently, I read somewhere that if you point them to a loopback you will get
better performance.

ip route 10.0.0.0 255.0.0.0 lo0

Unfortunately, I have lost the reference. Does anyone agree with this, and
if so, can you explain the details as to why?

Thanks for any information!
Cheryl



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