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<title>BOSON CCNA COURSE - Lab 9</title>
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<p align="left"><b><font face="Times New Roman" size="3"><u><a name="9"></a>LAB 9 - OSPF</u><br>
</font></b></p>
<p align="left"><font face="Times New Roman" size="3">1. In this lab, you will configure the OSPF routing protocol. Begin by turning off EIGRP on router1, router2, router3, and router4.<br>
.<br>
</font><font size="2" face="Times New Roman"> routerx(config)# no router eigrp 100<br>
</font></p>
<p align="left"><font face="Times New Roman" size="3">2. Configure OSPF on router1, router2, router3, and router4. Use Process ID 1 and configure OSPF to send and receive updates on all
interfaces excluding the ISDN and Frame Relay interfaces.</font></p>
<p align="left"><font face="Times New Roman" size="2"> router1(config)# router ospf 1<br>
router1(config-router)# network 160.10.1.0 0.0.0.255 area 0<br>
router1(config-router)# network 175.10.1.0 0.0.0.255 area 0</font></p>
<p align="left"><font face="Times New Roman" size="2"> router2(config)# router ospf 1<br>
router2(config-router)# network 160.10.1.0 0.0.0.255 area 0</font></p>
<p align="left"><font face="Times New Roman" size="2"> router3(config)# router ospf 1<br>
router3(config-router)# network 175.10.1.0 0.0.0.255 area 0<br>
router3(config-router)# network 180.10.1.0 0.0.0.255 area 0<br>
router3(config-router)# network 197.10.1.0 0.0.0.255 area 0</font></p>
<p align="left"><font size="2" face="Times New Roman"> router4(config)# router ospf 1<br>
router4(config-router)# network 180.10.1.0 0.0.0.255 area 0<br>
router4(config-router)# network 195.10.1.0 0.0.0.255 area 0<br>
</font><font face="Times New Roman" size="3">
<br>
</font></p>
<p align="left"><font face="Times New Roman" size="3">3. Display the dynamic routing protocols that are running on router4.<br>
a. Question: How frequently does OSPF send routing updates? </font>
</p>
<p align="left"><font face="Times New Roman" size="2"> router4# sh ip protocols<br>
</font></p>
<p align="left"><font face="Times New Roman" size="3">4. On router1, display its OSPF neighbors.</font></p>
<p align="left"><font face="Times New Roman" size="2"> router1# sh ip ospf neighbor<br>
</font></p>
<p align="left"><font face="Times New Roman" size="3">5. On router1, display the interfaces running OSPF.<br>
a. Question: what is the OSPF cost for a 10Mbps Ethernet interface? </font>
</p>
<p align="left"><font face="Times New Roman" size="2"> router1# sh ip ospf interface<br>
</font></p>
<p align="left"><font face="Times New Roman" size="3">6. Display the IP routing table on router4.<br>
a. Question: what is the administrative distance for OSPF?</font></p>
<p align="left"><font face="Times New Roman" size="2"> router4# show ip route<br>
</font></p>
<p align="left"><font face="Times New Roman" size="3">7. From router4, ping router1 and router2. These pings should succeed if OSPF is configured on all routers.</font></p>
<p align="left"><font size="2" face="Times New Roman"> router4# ping 175.10.1.1<br>
router4# ping 160.10.1.2</font></p>
<p align="left"> </p>
<p align="left"><font face="Times New Roman" size="2"><span class="724482219-24092001">Copyright (c) 1998-2003 Boson Software, Inc. All Rights Reserved.</span></font></p>
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