Easy access-list but is there a better way

From: Carter, Lee (Lee.Carter@CommerceBank.com)
Date: Thu Sep 25 2003 - 11:28:30 GMT-3

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Hi all,

Does anyone know of a quick easy way to Block RFC1918 ip addresses
     10.0.0.0 - 10.255.255.255 (10/8 prefix)
     172.16.0.0 - 172.31.255.255 (172.16/12 prefix)
     192.168.0.0 - 192.168.255.255 (192.168/16 prefix)
http://www.faqs.org/rfcs/rfc1918.html

I know you can deny 10/8, 172.16/12 and 192.168/16 but that would take 3
commands to deny and 1 to permit any after that (4 commands total) is there
a quick dirty 1 or 2 line command that would do the same like deny RFC1918?

thanks,
Lee

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