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Disabling Unneeded Services

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Step 1: Configure the Physical Interface Because this lab uses only one router, you will simulate an active FastEthernet connection by activating the interface and applying the no keepalive command to initiate an “always up” state, regardless of the existence of a device at the remote end. Normally, you would not use the no keepalive command on a routed interface, except in special circumstances. In this lab, you will use it only for simulation purposes. Configure the R1 physical interface using the IP address shown in the topology diagram. Use the no keepalive command in interface configuration mode, and then use the no shutdown command to activate the interface. Because you have disabled keepalives, the interface status displays as link state (Layer 1) and line protocols state (Layer 2) “up,” even if it is not connected to an external device. R1(config)# interface fastethernet0/0 R1(config-if)# ip address 192.168.10.1 255.255.255.0 R1(config-if)# no keepalive R1(config-if)# no s...
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How to Configure DHCP on a Cisco Router or Cisco Switch?

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1. Configure an IP address on the router’s Ethernet port, and bring up the interface. Router(config)# interface ethernet0/0 Router(config-if)#ip address 1.1.1.1 255.0.0.0 Router(config-if)# no shutdown 2. Create a DHCP IP address pool for the IP addresses you want to use. Router(config)# ip dhcp pool mypool 3. Specify the network and subnet for the addresses you want to use from the pool. Router(dhcp-config)# network 1.1.1.0 /8 4. Specify the DNS domain name for the clients. Router(dhcp-config)#domain-name mydomain.com 5. Specify the primary and secondary DNS servers. Router(dhcp-config)#dns-server 1.1.1.10 1.1.1.11 6. Specify the default router (i.e., default gateway). Router(dhcp-config)#default-router 1.1.1.1 7. Specify the lease duration for the addresses you’re using from the pool. Router(dhcp-config)#lease 7 8. Exit Pool Configuration Mode . Router(dhcp-config)#exit
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