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Chapter 3
IP Addressing
From these tables, we see that our IP address range for the Ethernet user
segment is 172.16.1.1­172.16.1.254. Also, we see that the IP address range
for the server farm segment is 172.16.2.1­172.16.3.254.
In summary, we have defined the following address ranges for our four
segments, as detailed in Table 3.13.
We can now take our VLSM address ranges and apply them to our net-
work diagram, as shown in Figure 3.3.
F I G U R E 3 . 3
VLSM example with IP addresses
T A B L E 3 . 1 3
Valid IP Addresses for All Four Segments Used in Figure 3.2
Description of Segment
Address Range
Server farm
172.16.2.1­172.16.3.254
Ethernet user segment
172.16.1.1­172.16.1.254
Serial link
172.16.0.5­172.16.0.6
Router interconnection switched segment
172.16.0.9­172.16.0.14
Router Interconnections
(172.16.0.9--172.16.0.14)
Point-to-Point HDLC Link
(172.16.0.5--172.16.0.6)
Ethernet User Segment
(172.16.1.1--172.16.1.254)
Class B Address: 172.16.0.0
Server Farm
(172.16.2.1--172.16.3.254)
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