[arin-ppml] The problem with IPv4 bogon and listing them
stephen at sprunk.org
Wed Oct 29 19:07:41 EDT 2008
Ted Mittelstaedt wrote:
> Kevin, let's talk about bogons. We have Cymru running their list here:
> but, I'll quote from the text on the list:
> "...IANA allocations change over time, so please check back regularly to ensure you have the latest filters. I can not stress this point strongly enough - these allocations change, as often as every four months...."
> Checking back every 4 MONTHS? So that means if I request IPv4 that's dirty, on this list, and I get it, that I have to wait 4 months before using it?
No. According to staff comments, when a block is returned or revoked,
it is placed on hold for _at least_ 6 mos if it is "clean" and much
longer if it is "dirty". If folks keep their bogon (or spammer) filters
up to date, there should be no problem at all.
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