IP Helper/DHCP Relay Commands 991• The protocol field in the IP header must be UDP (17).• The destination UDP port must match a configured relay entry.DHCP relay cannot be enabled and disabled globally. IP helper can beenabled or disabled globally. Enabling IP helper enables DHCP relay.Commands in this ChapterThis chapter explains the following commands:bootpdhcprelay maxhopcountUse the bootpdhcprelay maxhopcount command in Global Configurationmode to configure the maximum allowable relay agent hops for BootP/DHCPRelay on the system. Use the no form of the command to set the maximumhop count to the default value.Syntaxbootpdhcprelay maxhopcountintegerno bootpdhcprelay maxhopcount•integer — Maximum allowable relay agent hops for BootP/DHCP Relay onthe system. (Range: 1-16)Default ConfigurationThe defaultinteger configuration is 4.bootpdhcprelay maxhopcount ip helper-address (global configuration)bootpdhcprelay minwaittime ip helper-address (interface configuration)clear ip helper statistics ip helper enableip dhcp relay information check show ip helper-addressip dhcp relay information check-reply show ip dhcp relayip dhcp relay information option show ip helper statisticsip dhcp relay information option-insert –
