Accton Technology ES4626 User Manual
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Fig 10-3 DHCP Relay Configuration
As shown in the above figure, route switch is configured as a DHCP relay. The DHCP
server address is 10.1.1.10, TFTP server address is 10.1.1.20, the configuration steps is
as follows:
Switch(Config)#service dhcp
Switch(Config)#interface vlan 1
Switch(Config-if-Vlan1)#ip address 192.168.1.1 255.255.255.0
Switch(Config-if-Vlan1)#exit
Switch(Config)#vlan 2
Switch(Config-Vlan-2)#exit
Switch(Config)#interface Ethernet 1/2
Switch(Config-Erthernet1/2)#switchport access vlan 2
Switch(Config-Erthernet1/2)#exit
Switch(Config)#interface vlan 2
Switch(Config-if-Vlan2)#ip address 10.1.1.1 255.255.255.0
Switch(Config-if-Vlan2)#exit
Switch(Config)#ip forward-protocol udp 67
Switch(Config)#interface vlan 1
Switch(Config-if-Vlan1)#ip help-address 10.1.1.10
Switch(Config-if-Vlan1)#exit
Switch(Config)#ip forward-protocol udp 69
Switch(Config)#interface vlan 1
Switch(Config-if-Vlan1)#ip help-address 10.1.1.20
Switch(Config-if-Vlan1)#exit
Note: DHCP server address and TFTP server address must be configured separately
since their receiving UDP protocols are different. It is recommended to use the
combination of command “ip forward-protocol udp