tis 2007-06-12 klockan 08:48 +0100 skrev Rob Oats:
> I have addressed this issue with Ask over the last few days as result of my 
> modem/router being taken down.
> 
> On Friday 1st June my router was taken down by a surge of requests exceeding 
> 36 000 requests/min. I have since been able to obtain a dump file from 
> another surge. The bulk of these requests are coming from Turk Telekom.
> 
> I wanted to know whether others in the pool are seeing similar effects 
> (really 
> a DDOS) and whether they are able to handle this and what is the general 
> attitude is to commercial organisations effectively handing off a service to 
> us. I would have no problem with this organisation having a single box 
> pulling time from the pool and servicing their own networks from this box. 
> 
> Rob Oats
> UK
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I've been having problems with Turk Telecom also, and I've sent atleast
two emails to their abuse adress but the do not reply.
I got peaks about 10'000 connections from their netblocks, and finally I
decided to drop packets from these netblocks in my firewall. It's not
that my router can't handle 10'000 connections, but I'm on a DSL
connection that wraps my ethernet packages in ATM on the way to the ISP.
This seems to result in much more bandwidth being used than what I
expected, and eventually led to very high delays to the internet (500
ms).
I'm not sure if it's okay with the pool that I block these IPs, if it's
not you can just remove me from the pool (80.252.175.45). But I don't
think my server will do much good if it has delays up to 500 ms
sometimes?
I've attached a list of netblocks that I got from the RIPE whois
database if someone else needs to block these IPs.

Regards, Johan Marcusson
Netblocks belonging to Turk Telecom according to RIPE whois database:

212.156.0.0/16
212.174.0.0/16
212.175.0.0/16
194.9.174.0/24
213.138.0.0/19
193.218.200.0/24
194.54.32.0/19
62.248.0.0/17
195.174.0.0/16
195.175.0.0/17
195.175.128.0/18
195.175.192.0/18
193.201.128.0/22
81.212.0.0/16
81.213.0.0/16
81.214.0.0/16
81.215.0.0/16
193.254.252.0/23
193.254.252.0/24
195.174.153.0/24
193.254.253.0/24
193.254.252.0/24
195.128.32.0/24
195.128.33.0/24
195.128.34.0/24
195.128.35.0/24
195.128.36.0/24
195.128.37.0/24
195.128.38.0/24
195.128.39.0/24
195.128.32.0/22
195.128.36.0/22
195.128.32.0/21
195.174.0.0/17
195.174.128.0/18
195.174.192.0/18
81.215.0.0/17
81.215.128.0/17
85.96.0.0/16
85.96.0.0/17
85.96.128.0/17
85.97.0.0/17
85.97.128.0/17
85.98.0.0/17
85.98.128.0/17
81.212.0.0/17
81.212.128.0/17
81.213.0.0/17
81.213.128.0/17
81.214.0.0/17
81.214.128.0/17
212.156.0.0/17
212.156.128.0/17
212.174.0.0/17
212.174.128.0/17
212.175.0.0/17
212.175.128.0/17
85.99.0.0/17
85.99.128.0/17
85.100.0.0/17
85.100.128.0/17
85.111.0.0/17
85.111.128.0/17
85.105.0.0/17
85.105.128.0/17
85.101.0.0/17
85.101.128.0/17
85.106.0.0/17
85.106.128.0/17
212.174.190.0/24
195.140.196.0/24
212.174.190.0/24
85.110.0.0/17
85.110.128.0/17
85.107.0.0/17
85.107.128.0/17
88.224.0.0/17
88.224.128.0/17
88.225.0.0/17
88.225.128.0/17
88.247.0.0/17
88.247.128.0/17
88.240.0.0/17
88.240.128.0/17
88.233.0.0/17
88.233.128.0/17
88.226.0.0/17
88.226.128.0/17
88.227.0.0/17
88.227.128.0/17
88.228.0.0/17
88.228.128.0/17
88.232.0.0/17
88.232.128.0/17
88.239.0.0/17
88.239.128.0/17
88.246.0.0/17
88.246.128.0/17
88.241.0.0/17
88.241.128.0/17
88.248.0.0/17
88.248.128.0/17
88.229.0.0/17
88.229.128.0/17
88.234.0.0/17
88.234.128.0/17
85.108.0.0/17
85.108.128.0/17
85.109.0.0/17
85.109.128.0/17
88.230.0.0/17
88.230.128.0/17
88.231.0.0/17
88.231.128.0/17
88.235.0.0/17
88.235.128.0/17
88.236.0.0/17
88.236.128.0/17
88.237.0.0/17
88.237.128.0/17
88.238.0.0/17
88.238.128.0/17
88.242.0.0/17
88.242.128.0/17
88.243.0.0/17
88.243.128.0/17
88.244.0.0/17
88.244.128.0/17
88.245.0.0/17
88.245.128.0/17
88.249.0.0/17
88.249.128.0/17
88.250.0.0/17
88.250.128.0/17
88.251.0.0/16
88.252.0.0/16
88.253.0.0/16
88.254.0.0/16
88.255.0.0/16
88.251.0.0/17
88.251.128.0/17
88.252.0.0/17
88.252.128.0/17
88.253.0.0/17
88.253.128.0/17
88.254.0.0/17
88.254.128.0/17
78.160.0.0/11
78.160.0.0/17
78.160.128.0/17
78.186.0.0/17
78.186.128.0/17
78.161.0.0/17
78.161.128.0/17
78.171.0.0/17
78.171.128.0/17
78.172.0.0/17
78.172.128.0/17
78.180.0.0/17
78.180.128.0/17
78.181.0.0/17
78.181.128.0/17

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