172.16.2.___
172.16.3.___
172.16.5.___
172.16.1.___
Class B 172.16.0.0
First 3 Octets are Equal
Subnet Design:
172.16.4.___
Figure 11-1
Subnet Plan Document
The design shows five subnets—one for each of the three LANs and one each for the two
WAN links. The small text note shows the rationale used by the engineer for the subnets:
each subnet includes addresses that have the same value in the first three octets. For exam-
ple, for the LAN on the left, the number shows 172.16.1.__, meaning “all addresses that
begin with 172.16.1.” Also, note that the design, as shown, does not use all the addresses in
Class B network 172.16.0.0, so the engineer has left plenty of room for growth.
Do'stlaringiz bilan baham: |