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TomBallaFlag for United States of America

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blocking ip addresses

How do you block certain IP addresses in a network?  We have a cisco router and I want to block some known bad IP addresses.
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Nick Rhode
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On a router I'd route it to the null interface, since you know the IP.

http://www.cisco.com/en/US/tech/tk364/technologies_tech_note09186a00801c9a6e.shtml
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It is an RVS4000 and you will have to talk down to me, I'm not well versed in this type of thing.
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surbabu140977
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