[AusNOG] Bogon Filtering

[Noel Butler]

Hi Chris,

On Mon, 2012-02-13 at 16:22 +1100, Chris Killian wrote:

> Hi guys
> 
> Fairly open ended question but does filter these anymore. Some
> companies seem to think that as the IPV4 space has been fully
> allocated this is no longer a requirement. However looking at the
> bogon lists there are still a huge number of unallocted IPV4 address. 


10.0.0.0/8
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

Most of that is self explanatory, so no, it is no longer serves a
purpose.

Up until 12 month ago I'd agree bogon filtering was a good idea in the
hands of competent networking staff, sadly, as others have touched on,
there's too many clueless, or plain outright lazy network engineers
around the globe, I, like most here, have lost count of how many man
hours wasted chasing out of date filter operators, so it's no longer
worth the effort.

Cheers


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