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mphilli7823
mphilli7823
New Member
November 11, 2018
Question

Blocking Bogon Network Using Route-Map vs Black Hole

  • November 11, 2018
  • 1 reply
  • 4555 views

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?

    1 reply

    emnoc
    emnoc
    New Member
    November 11, 2018

    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
    mphilli7823Author
    New Member
    November 11, 2018

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

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