5 Configuring DHCP.ppt

ManipulatingRoutingUpdates ImplementingAdvancedCiscoIOSFeatures ConfiguringDHCP ImplementingAdvancedCiscoIOSFeatures ConfiguringDHCP DHCPinanEnterpriseNetwork DynamicHostConfigurationProtocol ConfiguringaDHCPServer Router config ipdhcppool poolname EnablesaDHCPpoolforusebyhosts Router config dhcp importall ImportsDNSandWINSinformationfromIPCP Router config dhcp default router hostaddress Specifiesthedefaultrouterforthepooltouse Router config dhcp network networkaddress subnetmask Specifiesthenetworkandsubnetmaskofthepool DHCPServerConfigurationExample ipdhcpdatabaseftp user passwords 172 16 4 253 router dhcpwrite delay120ipdhcpexcluded address172 16 1 100172 16 1 103ipdhcpexcluded address172 16 2 100172 16 2 103ipdhcppool0network172 16 0 0 16domain dns server172 16 1 102172 16 2 102netbios name server172 16 2 103172 16 2 103default router172 16 1 100 ImportingandAutoconfiguration DHCPClient Router config if ipaddressdhcp EnablesaCiscoIOSdevicetoobtainanIPaddressdynamicallyfromaDHCPserver HelperAddressingOverview Routersdonotforwardbroadcasts bydefault Helperaddressprovidesselectiveconnectivity WhyUseaHelperAddress Sometimesclientsdonotknowtheserveraddress Helperschangebroadcasttounicasttoreachserver IPHelperAddressCommands Specifieswhichprotocolswillbeforwarded Router config ipforward protocol udp port EnablesforwardingandspecifiesdestinationaddressformainUDPbroadcastpacketsChangesdestinationaddressfrombroadcasttounicastordirectedbroadcastaddress Router config if iphelper addressaddress MultipleServers RemoteNetworks RelayAgentOptionSupport showipdhcpdatabase router DisplaysrecentactivityontheDHCPdatabase DHCPVerificationCommands showipdhcpserverstatistics router Showscountinformationaboutstatisticsandmessagessentandreceived showiproutedhcp router DisplaysroutesaddedtotheroutingtablebyDHCP debugipdhcpserver events packets linkage router EnablesdebuggingontheDHCPserver Summary DHCPfunctionsmaybeconfiguredwithCiscoIOSsoftware DHCPservercanbeconfigured DHCPoptionscanbeconfigured DHCPclientcanb