We are using CIDR notation to optimize memory use of ban rules.
If you like to ban the range 208.93.7.* you need to add the rule:
208.93.7.0 / 24
See: Classless Inter-Domain Routing - Wikipedia, the free encyclopedia

Even though you might need multiple rules to block part ranges, with this notation Phex is able to reduce memory costs for the address range to 5 bytes, which is the smallest it can get. This allows us to store the around 400.000 default address ranges included in Phex in about 2MB of memory. And I'm not worried about handling a few hundred thousand more.

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Thanks Gregor, gonna try that...

This is the IP i want to block, as you can see this client is very agressive, after blocking there still a lot retries form this IP address:



My screen is not high enough to make a screen of ALL blocked clients (and still nog block all!) with this IP address, the screenshot would be 6 times longer

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Phex - The best Gnutella client!