CCNA 3 Labs and Study Guide - BINARYBB.INFO – @jagalbraith

Step 5. Verify or explain the previous answer.
You cannot change the speed on the Ethernet interfaces of 2500 series routers. You can change
the bandwidth used in calculations with the bandwidth command. On routers with Fast
Ethernet, you can change the speed on a Fast Ethernet interface with the speed command.
Once changed, OSPF will use the new speed as the bandwidth variable for the cost calculation.
FastEthernet0/0 is up, line protocol is up
Internet Address 192.168.1.129/25, Area 0
Process ID 1, Router ID 192.168.1.129, Network Type BROADCAST, Cost:
50
Transmit Delay is 1 sec, State DR, Priority 1
Step 6. Reset the bandwidth on the serial interface by using no bandwidth 2000 at the serial 0 interface
configuration mode prompt.
After you complete the previous steps, log off (by typing exit) and turn the router off. Then, remove and
store the cables and adapter.
Curriculum Lab 2-4: Configuring OSPF Authentication
(2.3.4)
Figure 2-13 Topology for Lab 2-4
Straight-Through Cable
Table 2-8 Lab Equipment Configuration: Part I
Area 0
Rollover (Console) Cable
Router 1 Router 2
Crossover Cable
Serial Cable
Chapter 2: Single-Area OSPF 137
Router Designation Router Name Routing Protocol Network Statements
Router 1 Dublin OSPF 192.168.1.0
Router 2 Washington OSPF 192.168.1.0
192.168.0.0