446 Chapter 6: Routing
Both valid styles of static route configuration are shown. In any topological case, the style of
static route command using the next router's IP address is valid. If the route points to a subnet
that is on the other side of a point-to-point serial link, the static route command can simply refer
to the outgoing serial interface.
Answers to Task 4 for Scenario 6-1
Task 4 for Scenario 6-1 asks for IGRP configuration. The same configuration is used on each
router and is listed in Example 6-36. The IGRP process-id must be the same number on each
router; if an IGRP update is received but lists a different process-id, the update will be ignored.
Answers to Task 5 for Scenario 6-1
Task 5 for Scenario 6-1 asks for the broadcast addresses for each subnet. These are shown in
Table 6-36.
Answers to Scenario 6-2: IP Configuration 2
Refer back to the network illustrated in Figure 6-24 and Table 6-31 to establish the Scenario
6-2 design details and the context of the answers to the four tasks for this scenario.
Example 6-36
IGRP Configuration, Scenario 6-1
router igrp 1
network 148.14.0.0
Table 6-36
Scenario 6-1 IP Addresses
Location of Subnet
Geographically
Subnet Mask
Subnet Number
Subnet
Broadcast
Ethernet off router in Albuquerque
255.255.255.0
148.14.1.0
148.14.1.255
Ethernet off router in Yosemite
255.255.255.0
148.14.2.0
148.14.2.255
Ethernet off router in Seville
255.255.255.0
148.14.3.0
148.14.3.255
Serial between Albuquerque and
Yosemite
255.255.255.0
148.14.4.0
148.14.4.255
Serial between Albuquerque and
Seville
255.255.255.0
148.14.5.0
148.14.5.255
Serial between Seville and
Yosemite
255.255.255.0
148.14.6.0
148.14.6.255
ch06.fm Page 446 Monday, March 20, 2000 5:11 PM