I use the following thechnique to ban an Ip address or an Ip block:

1. Look up the IP: DnsStuff. Note the IP (xy.zw.221.230) and the CIDR (xy.zw.0.0/16).
2. Block the IP: deny from xy.zw.221.230
3. Block the IP range: deny from xy.zw.0.0/16

Where x,y,z and w are numbers.

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Kjell Gunnar Bleivik:: Financial information at your fingertips
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