Threat Level: green Handler on Duty: Rob VandenBrink

SANS ISC: Time to update those IP Bogon Filters (again) - SANS Internet Storm Center SANS ISC InfoSec Forums

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Time to update those IP Bogon Filters (again)

Looks like the Internet Assigned Numbers Authority (IANA) has recently assigned two more IP prefixes to the American Registry for Internet Numbers (ARIN):  and

For those of you that maintain IP Bogon Filters, you may want to adjust your filters accordingly.


G. N. White

ISC Handler on Duty

G. N.

23 Posts
Feb 12th 2010
I'm really not keen on these Bogon filters. With the sole exception of the IP prefixes reserved for internal uses. But in a perfect world maybe everyone would be peered with networks that implement BCP38.

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