>inktomi2-nor.server.ntl.com
Are you sure that's not inktomi2-*not*.server.ntl.com.
That is the host name of the NTL cable modem service, are you seeing spidering patterns from there? Also NTL are running an Ink cache.
What IP's do you have, most cable customers are 62.254.
Separate point. While scanning quickly, also noticed
vscooter.pa.alta-vista.net - - [18/Jul/2000:11:46:07 +0000]
Not seen that one before (as far as I can remember).