Blocking Bogon Network Using Route-Map vs Black Hole

[mphilli7823]

We want to block Bogon networks sent or received via BGP. It seems like you can get this done by using a blackhole or by using a route-map with a prefix-list. However which of these is the "proper" way to do it?

[emnoc]

I would  use a prefix-list and any routes that match the public listed bogons you just flat out drop them. This is an rfc1918 or rfc6598 or unallocated networks. Build the prefix-list once and use it where  required

http://socpuppet.blogspot.com/2014/01/how-to-verify-or-build-bogon-list.html

Ken Felix

[mphilli7823]

What I thought as well, I just saw a few other threads on here where people were using blackholes vs the prefix lists