Network Address Translation and Router

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|CCNA4: Commands |

WAN Technologies
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Cisco Networking Academy Program CCNA 4: WAN Technologies v3.1.1

1 Module 1: Scaling IP Addresses 3

1.1 NAT and PAT 3 1.1.1 Configuring static NAT 3 1.1.2 Configuring dynamic NAT 3 1.1.3 Configuring NAT Overload (PAT) 4 1.1.4 Verifying NAT and PAT configuration 4 1.1.5 Troubleshooting NAT and PAT configuration 4

1.2 DHCP 5 1.2.1 Configuring DHCP Operation 5 1.2.2 Verifying DHCP Operation 5 1.2.3 Troubleshooting DHCP Configuration 5

2 Module 3: Point-to-Point Protocol (PPP) 6

2.1 Configuring HDLC Encapsulation 6

2.2 Troubleshooting a Serial
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By using the helper address feature, a router can be configured to accept a broadcast request for a UDP service and then forward it as a unicast to a specific IP address.
Example: Router(config-if)#ip helper-address address

2 Verifying DHCP Operation

Router#show ip dhcp binding [address]
Router#show ip dhcp conflict [address]
Router#show ip dhcp database [url]
Router#show ip

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