Purchased IPv4 Woes

Pete Baldwin pete at tccmail.ca
Sun Mar 12 23:51:17 UTC 2017

     So this is is really the question I had, and this is why I was 
wanting to start a dialog here, hoping that it wasn't out of line for 
the list.  I don't know of a way to let a bunch of operators know that 
they should remove something without using something like this mailing 
list.     Blacklists are supposed to fill this role so that one operator 
doesn't have to try and contact thousands of other operators 
individually, he/she just has to appeal to the blacklist and once 
delisted all should be well in short order.

     In cases where companies have their own internal lists, or only 
update them a couple of times a year from the major lists,  I don't know 
of another way to notify everyone.

     I get why people are more cautious and  filter entire blocks when 
just a few hosts are attacking/spamming them, and everyone has a choice 
on how they want to handle these situations.  As an ISP, I want to do as 
little filtering as possible.  I want all of my customers to have access 
to everything possible.  If a netblock changes hands, I want to give the 
new owner the benefit of the doubt and only filter traffic if it repeats 
the same old behaviour.  We're all using this finite space and I don't 
want to let the hostile minority slowly ruin what's left of the ipv4 


Pete Baldwin
Tuckersmith Communications
(P) 519-565-2400
(C) 519-441-7383

On 03/12/2017 11:40 AM, valdis.kletnieks at vt.edu wrote:
> How do all the AS's that have their own internal blacklists find out that
> they should fix their old listings?

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