Operation Manual – DHCPH3C S3600 Series Ethernet Switches-Release 1510 Chapter 2 DHCP Server Configuration2-28III. Configuring the option 184 supporting function in global DHCP addresspool viewTable 2-26 Configure the option 184 supporting function in global DHCP address poolviewOperation Command DescriptionEnter system view system-view —Configure the interface tooperate in DHCP servermode and assign the IPaddresses of a globaladdress pool to DHCPclientsdhcp select global { all | interfaceinterface-type interface-number [ tointerface-type interface-number ] }RequiredEnter DHCP address poolview dhcp server ip-pool pool-name —Configure an IP addressrange IP addresses inwhich are dynamicallyassignednetwork ip-address [ mask netmask ] —Configure the NCP-IPsub-option voice-config ncp-ip ip-address RequiredConfigure the AS-IPsub-option voice-config as-ip ip-address OptionalConfigure the voice VLANconfiguration sub-optionvoice-config voice-vlan vlan-id{ enable | disable } OptionalConfigure the Fail-overcall routing sub-optionvoice-config fail-over ip-addressdialer-string OptionalNote:Perform the operations listed in Table 2-26 in global address pool view if you specify toassign IP addresses of a global DHCP address pool to DHCP clients.2.6.4 Configuration ExampleI. Network requirementsA 3COM VCX device operating as a DHCP client requests the DHCP server for allsub-options of option 184. A H3C series switch operates as the DHCP server. Theoption 184 supporting function is configured for a global DHCP address pool. Thesub-options of option 184 are as follows:z NCP-IP: 3.3.3.3