Cisco Catalyst 250 Series User Manual

PurposeCommand or Action
(Optional) Adds binding entries to the DHCP snooping binding
database. The vlan-id range is from 1 to 4904. The seconds
range is from 1 to 4294967295.
ip dhcp snooping binding mac-address vlan vlan-id
ip-address interface interface-id expiry seconds
Example:
Switch# ip dhcp snooping binding
Step 7
Enter this command for each entry that you add.
Use this command when you are testing or debugging the switch.
0001.1234.1234 vlan 1 172.20.50.5 interface
gi1/1 expiry 1000
Displays the status and statistics of the DHCP snooping binding
database agent.
show ip dhcp snooping database [detail]
Example:
Switch# show ip dhcp snooping database detail
Step 8
Verifies your entries.show running-config
Example:
Switch# show running-config
Step 9
(Optional) Saves your entries in the configuration file.copy running-config startup-config
Example:
Switch# copy running-config startup-config
Step 10
Enabling DHCP Server Port-Based Address Allocation
Follow these steps to globally enable port-based address allocation and to automatically generate a subscriber
identifier on an interface.
SUMMARY STEPS
1.
enable
2.
configure terminal
3.
ip dhcp use subscriber-id client-id
4.
ip dhcp subscriber-id interface-name
5.
interface interface-id
6.
ip dhcp server use subscriber-id client-id
7.
end
8.
show running-config
9.
copy running-config startup-config
Catalyst 2960-X Switch Security Configuration Guide, Cisco IOS Release 15.0(2)EX
OL-29048-01 229
Configuring DHCP
Enabling DHCP Server Port-Based Address Allocation

Cisco Catalyst 250 Series Specifications

General

Brand	Cisco
Model	Catalyst 250 Series
Category	Switch
Language	English