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The Bogon Reference – Team Cymru

Posted by jpluimers on 2017/06/23

WHAT IS A BOGON, AND WHY SHOULD I FILTER IT?

A bogon prefix is a route that should never appear in the Internet routing table. A packet routed over the public Internet (not including over VPNs or other tunnels) should never have a source address in a bogon range. These are commonly found as the source addresses of DDoS attacks.

Source: The Bogon Reference – Team Cymru

The regular Bogon list is pretty static (last change in 2012), so I’ve listed the text version below. But the full Bogon list (including unused IPv4 space) is dynamic.

0.0.0.0/8
10.0.0.0/8
100.64.0.0/10
127.0.0.0/8
169.254.0.0/16
172.16.0.0/12
192.0.0.0/24
192.0.2.0/24
192.168.0.0/16
198.18.0.0/15
198.51.100.0/24
203.0.113.0/24
224.0.0.0/4
240.0.0.0/4

–jeroen

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