On Sat, Jun 21, 2008 at 07:41:18PM +0300, almog ohayon wrote: > Q : when i have couple of address that i need to know their common wildcard, > i XOR them and i get excellent result but > how can i know that i'm not overlapping any other addresses ??
a wildcard will match 2^x addresses where x= the number of bits set. examples: 0.0.0.1 = 0 0 0 1 = 2 addrs 10.0.0.0 10.0.0.1 = 10.0.0.0 0.0.0.1 0.0.0.3 = 0 0 0 11 = 4 addrs 10.0.0.0 10.0.0.1 10.0.0.2 10.0.0.3 = 10.0.0.0 0.0.0.3 0.0.0.6 = 0 0 0 110 = 4 addrs 10.0.0.0 10.0.0.2 10.0.0.4 10.0.0.6 = 10.0.0.0 0.0.0.6 0.1.0.1 = 0 1 0 1 = 4 addrs 10.0.0.0 10.1.0.0 10.0.0.1 10.1.0.1 = 10.0.0.0 0.1.0.1 -- bill _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
