nanog mailing list archives
Re: Purchased IPv4 Woes
From: Harry McGregor <hmcgregor () biggeeks org>
Date: Sun, 12 Mar 2017 17:02:04 -0700
Hi,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...
-Harry 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 () vt edu wrote:How do all the AS's that have their own internal blacklists find out thatthey should fix their old listings?
Current thread:
- Re: Purchased IPv4 Woes, (continued)
- Re: Purchased IPv4 Woes Rich Kulawiec (Mar 12)
- Re: Purchased IPv4 Woes Pete Baldwin (Mar 12)
- Re: Purchased IPv4 Woes Rob McEwen (Mar 12)
- Re: Purchased IPv4 Woes Baldur Norddahl (Mar 12)
- Re: Purchased IPv4 Woes Rob McEwen (Mar 12)
- Re: Purchased IPv4 Woes Baldur Norddahl (Mar 12)
- Re: Purchased IPv4 Woes Rob McEwen (Mar 12)
- Re: Purchased IPv4 Woes Ca By (Mar 12)
- Re: Purchased IPv4 Woes Baldur Norddahl (Mar 12)
- Re: Purchased IPv4 Woes Pete Baldwin (Mar 12)
- Re: Purchased IPv4 Woes Harry McGregor (Mar 12)
- Re: Purchased IPv4 Woes Jon Lewis (Mar 12)
- Re: Purchased IPv4 Woes Bob Evans (Mar 12)
- Re: Purchased IPv4 Woes Justin Wilson (Mar 19)
- Re: Purchased IPv4 Woes Suresh Ramasubramanian (Mar 19)
- Re: Purchased IPv4 Woes Josh Reynolds (Mar 20)
- Re: Purchased IPv4 Woes Mike Hammett (Mar 20)
- Re: Purchased IPv4 Woes Josh Reynolds (Mar 20)
- Re: Purchased IPv4 Woes Rob McEwen (Mar 20)
- Re: Purchased IPv4 Woes Bob Evans (Mar 20)
- Re: Purchased IPv4 Woes Steve Atkins (Mar 20)