Blocking Cuil bots

[Asia_Expat]

I've noticed some very aggressive spidering from Cuil IP ranges, so I want to block this stupid bot. Their IP ranges are as detailed here (allegedly)...
[cuil.com...]

Could someone please confirm the correct CIDR notation for those ranges for my firewall.

[tangor]

Got to ask... have you denied them in robots.txt? I get a bunch of inquiries, but cuil so far, has ONLY taken robots.txt... and that's a drop in the bucket...

Actually, I whitelist only a few bots, deny all others, and cuil honors it.

[Asia_Expat]

No, because I figured they would continue hammering my forum until the next time they read the robots.txt file (they seem to have got stuck in a particular forum thread which they've been loading over and over for the last day or two)... so I'll just scupper them in my firewall and be done with it.

[tangor]

That works, too!

[tpeacock]

This is what I have for CIDR notation for Cuil IP ranges:

216.129.119.0/27
38.99.13.112/28
67.218.116.128/29
67.218.116.160/29
216.129.119.32/27
216.129.119.81

Thomas

[Asia_Expat]

Thanks... that should make my firewall deny file look a bit smaller.

[dstiles]

They list their bot IPs on their web site (I wish all bots would!). So far I haven't seen any other IP with twiceler.

I haven't seen any aggressive hits. They're far fewer than, eg, yahoo and msn on my sites.

[tangor]

Checked the ranges above... I've been hit by all... and the only file taken was robots.txt (which disallows cuil). 1,561 requests have come from all, sometimes two to five times a day, since the first of the year... Seems well behaved, at least in my experience.