Purchased IPv4 Woes
hmcgregor at biggeeks.org
Mon Mar 13 00:02:04 UTC 2017
This is why I moved away from static black lists years ago. When the
68/8 and 24/8 blocks were released and tons of networks had it blocked
since it was "reserved" I observed and felt the pain.
My networks are small, and I rely on things such as fail2ban which auto
remove the blocks.
I would be willing to bet that many of the network operators/admins that
blocked your range are either not in the job any more or even dead. No
one in the company knows the blocks exist...
On 03/12/2017 04:51 PM, Pete Baldwin wrote:
> 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 assignments.
> 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
>> they should fix their old listings?
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