Who is "64.210.196.***"?

I'm seeing this in my logs on very different domains.

[fischermx]

I see this address very often, but it does not resolve to an specific provider. Since I see it on very different domains which are not related at all, I guess it is a robot.
Does anybody knows if this is a bot?

[edited by: volatilegx at 7:37 pm (utc) on Aug. 2, 2005]
[edit reason] obscured IP addresses [/edit]

[volatilegx]

Do you know what the user agent is?

[wilderness]

Girafabot is the spider name.

[Dijkgraaf]

Yes, it is a bot from [girafa.com...]

[GaryK]

Was this the user agent:

Mozilla/4.0 (compatible; MSIE 5.5; Windows NT; Girafabot; girafabot at girafa dot com; [girafa.com)...]

My notes indicate it reads robots.txt but does not respect it.