wildcard = host - 1
host = 2^(32-prefix)
For example:
/28 --> prefix 28
host = 2^(32-28)
host = 2^4
host = 16
wildcard = 16 - 1
wildcard = 15
So wildcard masking for: 172.30.16.0/28 --> 172.30.16.0 0.0.0.15
Thursday, October 22, 2009
Easy Way to Wildcard counting
If you are a network engineer and deal a lot with Cisco router configuration, this short post might help you, I hope :)
For example:
So wildcard masking for: 172.30.16.0/28 --> 172.30.16.0 0.0.0.15
For example:
So wildcard masking for: 172.30.16.0/28 --> 172.30.16.0 0.0.0.15
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