Re: [CGUYS] IPv4 Exhaustion Counter

[tjpa]

Apparently there is a black hole into which IPs are disappearing. When  
blocks of IPs get blacklisted the blacklisting lasts forever. There is  
no mechanism for removing IPs from blacklists. Blacklists often copy  
from each other and there are so many different blacklists that it  
would be tough to track them all down. So if an ISP should try to  
recycle a blacklisted IP the poor soul who gets the IP will find it is  
not usable. As the bad guys constantly acquire new IPs and these IPs  
get blacklisted the process eats up more and more available IPs.

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