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

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Step 4. Record the VLAN 1 MAC addresses that are displayed.<br />

ALSwitch#show mac-address-table<br />

Mac Address Table<br />

—————————————————————-<br />

Vlan Mac Address Type Ports<br />

—— —————- ———— ——-<br />

All 0009.b7f6.61c0 STATIC CPU<br />

All 0100.0ccc.cccc STATIC CPU<br />

All 0100.0ccc.cccd STATIC CPU<br />

All 0100.0cdd.dddd STATIC CPU<br />

1 0008.744d.8ee2 STATIC Fa0/4<br />

1 0800.4606.fbb6 DYNAMIC Fa0/1<br />

Total Mac Addresses for this criterion: 6<br />

Task 14: Clear the MAC Address Table<br />

Step 1. Clear the MAC address table. Doing so unlocks the MAC addresses from security <strong>and</strong> allows a<br />

new address to be registered.<br />

ALSwitch#clear mac-address-table dynamic<br />

Step 2. From the PC on the Fast Ethernet 0/8, ping 192.168.1.2 -n 50.<br />

Was this successful? Yes<br />

Step 3. If not, troubleshoot as necessary.<br />

Task 15: Change the Security Settings<br />

Step 1. Show the MAC address table.<br />

ALSwitch#show mac-address-table<br />

Step 2. Observe that Fast Ethernet 0/4 is secure but that the security should be applied to the machine<br />

on port 0/8 because that is the machine that was moved form port 0/4. Remove port security<br />

from interface Fast Ethernet 0/4.<br />

ALSwitch(config)#interface fastethernet 0/4<br />

ALSwitch(config-if)#no switchport port-security<br />

ALSwitch(config-if)#no switchport port-security mac-address sticky<br />

ALSwitch(config-if)#no switchport port-security mac-address sticky<br />

0008.744d.8ee2<br />

ALSwitch(config-if)#shutdown<br />

ALSwitch(config-if)#no shutdown<br />

1900:<br />

ALSwitch(config)#interface ethernet 0/4<br />

ALSwitch(config-if)#no port secure<br />

Chapter 6: Catalyst Switch Configuration 287

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