436 CHAPTER 5: N ETWORK PROTOCOLDescriptionUsing the ip address dhcp-alloc command, you can allocate local IP addresses bymaking use of DHCP. Using the undo ip address dhcp-alloc command, you candisable the allocation of local IP addresses via DHCP negotiation. This commandmust be configured and executed in Ethernet interface (including subinterface)view.By default, DHCP negotiation is not used for the allocation of local IP addresses.ExampleAdopt DHCP negotiation for the allocation of local IP addresses on Ethernet0/0/0.[3Com-Ethernet0/0/0] ip address dhcp-allocDHCP RelayConfigurationCommandsdebugging dhcp relay Syntaxdebugging dhcp relayundo debugging dhcp relayViewUser viewParameterNoneDescriptionUsing the debugging dhcp relay command, you can enable debugging on theDHCP-relay module. Using the undo debugging dhcp relay command, you candisable DHCP-relay module debugging.ExampleEnable DHCP-relay module debugging.<3Com>debugging dhcp relaydhcp relay release Syntaxdhcp relay release { client-ip mac-address } [ server-ip ]ViewInterface viewSystem viewParameter■ client-ip: IP address of the DHCP client.■ mac-address: MAC address of the DHCP client, which is in the format ofH-H-H.