Zoom ZoomAir AP11, Installation Manual

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Appendix C IP Networking Basics 71
valid host numbers are 00001 through 11110 in binary notation, or 1
through 30 in decimal notation.
Here’s a summary of Acme’s subnetting plan:
Subnet
Name
Subnet No. Maximum
No. of Hosts
IP Address
Range
Building 1 32 30 192.168.1.33 -
192.168.1.62
Building 2 64 30 192.168.1.65 -
192.168.1.94
Building 3 96 30 192.168.1.97 -
192.168.1.126
Building 4 128 30 192.168.1.129-
192.168.1.158
Building 5 160 30 192.168.1.161-
192.168.1.190
Backbone 192 30 192.168.1.193-
192.168.1.222
Broadcast Addresses
The broadcast address is used by IP to propagate packets to all hosts
connected directly to that network. While subnet and host addresses
containing all zeros and all ones are both reserved for broadcasting, in
practice, it is the address with all ones that is used for broadcasting.
In an unsubnetted network, there is one broadcast address. For
example, the broadcast address for the Class C network 207.67.12.0
would be 207.67.12.255.
In a subnetted network, there are two levels of broadcasting addresses.
First, there is the broadcast address that spans the entire network.
Then, each subnet has its own broadcast address. When configuring
an IP network interface for the ZoomAir AP11, it is the latter subnet
broadcast address that you should use.
In Acme’s case, the six subnets have the following broadcast
addresses:
Network Number Broadcast Addresses