[AusNOG] Bogon Filtering

[Sam Silvester]

On Mon, Feb 13, 2012 at 4:01 PM, Mark Newton <newton at atdot.dotat.org> wrote:
> On Mon, Feb 13, 2012 at 04:22:45PM +1100, Chris Killian wrote:
>
>  > 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.
>  > What do you guys think.
>
> As someone who has had to spend weeks of his life on several
> occasions trying to convince networks utilizing bogon filtering to
> update themselves because APNIC had started allocating out of a
> new IANA /8 block, I can tell you that anyone who is still bogon
> filtering is causing more harm than good, both to themselves and to
> whatever passes for global internet connectivity these days.
>

+1

By all means filter out RFC1918, defaults etc, but beyond that isn't
worth the pain it causes.