IP to network range



Daft question, to do with spam rejection: given the IP address of a spammer, I'm looking for a way of automatically firewalling out his ISP's entire network address range.

Obviously I can do a manual 'whois' on the lone address and extract the
appropriate IP address range by hand; but I want to automate this. Unfortunately the 'whois' information is often freeform and not readily parseable. Any ideas please?

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Please use the corrected version of the address below for replies.
Replies to the header address will be junked, as will mail from
various domains listed at www.scottsonline.org.uk
Mike Scott Harlow Essex England.(unet -a-t- scottsonline.org.uk)
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Relevant Pages

  • Re: IP to network range
    ... innocent network neighbours. ... I'm looking for a way of automatically firewalling out his ISP's ... Obviously I can do a manual 'whois' on the lone address and extract the ... Please use the corrected version of the address below for replies. ...
    (uk.comp.misc)
  • Re: IP to network range
    ... In article, Mike Scott ... spammer, I'm looking for a way of automatically firewalling out his ... ISP's entire network address range. ...
    (uk.comp.misc)