Cisco Catalyst 2960-XR Security Configuration Manual page 197

Configuring DHCP
SUMMARY STEPS
1. configure terminal
2. interface vlan vlan-id
3. ip address ip-address subnet-mask
4. ip helper-address address
5. end
6. interface range port-range or interface interface-id
7. switchport mode access
8. switchport access vlan vlan-id
9. end
DETAILED STEPS
Command or Action
Step 1 configure terminal
Example:
Switch# configure terminal
Step 2
interface vlan vlan-id
Example:
Switch(config)# interface vlan 1
Step 3 ip address ip-address subnet-mask
Example:
Switch(config-if)# ip address 192.108.1.27
255.255.255.0
Step 4 ip helper-address address
Example:
Switch(config-if)# ip helper-address
172.16.1.2
Step 5
end
Example:
Switch(config-if)# end
OL-29434-01
Purpose
Enters the global configuration mode.
Creates a switch virtual interface by entering a VLAN ID, and
enter interface configuration mode.
Configures the interface with an IP address and an IP subnet.
Specifies the DHCP packet forwarding address.
The helper address can be a specific DHCP server address, or it
can be the network address if other DHCP servers are on the
destination network segment. Using the network address enables
other servers to respond to DHCP requests.
If you have multiple servers, you can configure one helper address
for each server.
Returns to global configuration mode.
Catalyst 2960-XR Switch Security Configuration Guide, Cisco IOS Release 15.0(2)EX1
Specifying the Packet Forwarding Address
175