Planning A Microsoft Windows Server 2003 Network Chapter 05

Planning A Microsoft Windows Server 2003 Network Chapter 05...

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Unformatted text preview: 70-293: MCSE Guide to Planning a Microsoft Windows Server 2003 NetworkChapter 5: Planning, Configuring, And Troubleshooting DHCP70-293: MCSE Guide to Planning a Microsoft W2ObjectivesUnderstand the DHCP lease and renewal processPlan DHCP for small or large networksInstall DHCPAuthorize a DHCP serverConfigure a DHCP server with scopes, superscopes, and moreManage and monitor a DHCP serverTroubleshoot DHCP70-293: MCSE Guide to Planning a Microsoft W3The DHCP ProcessOn a network DHCP delivers IP addressing information automatically:To client computersServers and other devices such as printersUsing DHCP reduces the amount of time spent configuring individual computers on the network70-293: MCSE Guide to Planning a Microsoft W4Leasing an IP AddressA client computer that is configured to use DHCP must obtain a lease for an IP address The process to lease an address is composed of four packets:DHCPDISCOVERDHCPOFFERDHCPREQUESTDHCPACK70-293: MCSE Guide to Planning a Microsoft W5Leasing an IP Address (continued)70-293: MCSE Guide to Planning a Microsoft W6Renewing An IP AddressAn IP address is permanent or timedA permanent address is never reused for another client A timed lease allows clients to use an IP address for a specified period of timeA client can initiate the release of an IP address before the lease time has expired by using the command ipconfig/release 70-293: MCSE Guide to Planning a Microsoft W7Renewing An IP Address (continued)70-293: MCSE Guide to Planning a Microsoft W8Planning DHCPWhen planning how to implement DHCP, you must first consider whether it is a small or large networkA small network with a single subnet:Uses only hubs and switches (no router)Uses a single DHCP server to service all clients without any special configuration70-293: MCSE Guide to Planning a Microsoft W9When You Have a Large NetworkLarge networks with more than one subnet use routers to move packets between the subnetsDHCP relays or multiple DHCP servers must be configuredHaving several DHCP servers makes management very complex because each server is managed separately70-293: MCSE Guide to Planning a Microsoft W10When You Have a Large Network (continued)70-293: MCSE Guide to Planning a Microsoft W11DHCP RelayA DHCP relay allows DHCP communication across routersUsing DHCP relays can drastically simplify the implementation of DHCP because it reduces or eliminates the need for multiple DHCP serversDHCP relay receives broadcast DHCP packets from clients and forwards them as unicast packets to a DHCP serverDHCP relay must be configured with the IP address of the DHCP server to deliver the unicast packets70-293: MCSE Guide to Planning a Microsoft W12DHCP Relay (continued)70-293: MCSE Guide to Planning a Microsoft W13Fault ToleranceA fault-tolerant DHCP system can be designed using multiple DHCP servers, if no two servers hand out the same range of addresses at the same time...
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Planning A Microsoft Windows Server 2003 Network Chapter 05...

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