RFC 1918 Addresses

From: Kal Han (calikali2006@gmail.com)
Date: Thu Dec 14 2006 - 23:11:03 ART


Hi I saw rfc1918 list only the private addresses
( as its title suggests )
<RFC1918>
3. Private Address Space

   The Internet Assigned Numbers Authority (IANA) has reserved the
   following three blocks of the IP address space for private internets:

     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)
</RFC1918>

but in most of the solutions to deny rfc 1918 address I see lot more
addresses in the deny ace s ??

access-list 111 deny ip host 0.0.0.0 any
access-list 111 deny ip 1.0.0.0 0.255.255.255 any
access-list 111 deny ip 2.0.0.0 0.255.255.255 any
access-list 111 deny ip 5.0.0.0 0.255.255.255 any
access-list 111 deny ip 7.0.0.0 0.255.255.255 any
access-list 111 deny ip 127.0.0.0 0.255.255.255 any
access-list 111 deny ip 224.0.0.0 31.255.255.255 any

access-list 111 deny ip 10.0.0.0 0.255.255.255 any
access-list 111 deny ip 172.16.0.0 0.15.255.255 any
access-list 111 deny ip 192.168.0.0 0.0.255.255 any

Is this not including part of RFC3330 / &| / IANA reserved addresses as well
?

Thanks
Kal



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