Extending IP Addresses
75
We will now go through a simple three-step process for efficiently calcu-
lating the IP address ranges to be assigned to each segment. We say "effi-
ciently," because we will be using the minimum number of IP addresses
required to accomplish our goal.
1.
Create a table detailing the segments and the number of hosts required
on each segment, as shown in Table 3.6.
2.
Determine the subnet mask required to support the requirements
defined in step 1, and expand the table to list the subnet masks.
T A B L E 3 . 6
Number of IP Addresses Used in Figure 3.2
Description of Segment
Number of IP Addresses
Required
Server farm
300
Ethernet user segment
200
Serial link
2
Router interconnection switched
segment
4
Copyright ©2001 SYBEX , Inc., Alameda, CA
www.sybex.com