User Guide
406
Configuring DHCP Service
DHCP Relay Configuration
Switch(config)#interface gigabitEthernet
1/0/7
Switch(config-if)#ip dhcp relay information option
Switch(config-if)#ip dhcp relay information strategy replace
Switch(config-if)#ip dhcp relay information format normal
Switch(config-if)#ip dhcp relay information circut-id
VLAN20
Switch(config-if)#ip dhcp relay information remote-id
Host1
Switch(config-if)#show ip dhcp relay information interface gigabitEthernet
1/0/7
Interface Option 82 Status Operation Strategy Format Circuit ID Remote ID LAG
--------- ---------------- ------------------ ------- --------- -------- -----
Gi1/0/7 Enable Replace Normal VLAN20 Host1 N/A
Switch(config-if)#end
Switch#copy running-config startup-config
2.2.3 Configuring DHCP VLAN Relay
Follow these steps to configure DHCP VLAN Relay:
Step 1
configure
Enter Global Configuration Mode.
Step 2
Enter VLAN Interface Configuration Mode:
interface vlan
vlan-id
vlan-id
:
Specify a VLAN interface. Only the management VLAN is supported.
Step 3
ip dhcp relay default-interface
Set the management VLAN interface as the default relay-agent interface.
Step 4
exit
Return to Global Configuration Mode.
Step 5
ip dhcp relay vlan
vid
helper-address
ip-address
Specify the VLAN ID and the DHCP server.
vid:
Enter the ID of the VLAN, in which the hosts can dynamically get the IP addresses from
the DHCP server.
ip-address:
Enter the IP address of the DHCP server.
Step 6
show ip dhcp relay
Verify the configuration of DHCP Relay.
Step 7
end
Return to Privileged EXEC Mode.
Downloaded from
