Cisco Catalyst 250 Series User Manual

SUMMARY STEPS
1.
enable
2.
configure terminal
3.
ip dhcp snooping
4.
ip dhcp snooping vlan vlan-range
5.
ip dhcp snooping information option
6.
ip dhcp snooping information option format remote-id [string ASCII-string | hostname]
7.
ip dhcp snooping information option allow-untrusted
8.
interface interface-id
9.
ip dhcp snooping vlan vlan information option format-type circuit-id [override] string ASCII-string
10.
ip dhcp snooping trust
11.
ip dhcp snooping limit rate rate
12.
exit
13.
ip dhcp snooping verify mac-address
14.
end
15.
show running-config
16.
copy running-config startup-config
DETAILED STEPS
PurposeCommand or Action
Enables privileged EXEC mode. Enter your password if prompted.enable
Step 1
Example:
Switch> enable
Enters the global configuration mode.configure terminal
Example:
Switch# configure terminal
Step 2
Enables DHCP snooping globally.ip dhcp snooping
Example:
Switch(config)# ip dhcp snooping
Step 3
Enables DHCP snooping on a VLAN or range of VLANs. The range is
1 to 4094. You can enter a single VLAN ID identified by VLAN ID
ip dhcp snooping vlan vlan-range
Example:
Switch(config)# ip dhcp snooping vlan
10
Step 4
number, a series of VLAN IDs separated by commas, a range of VLAN
IDs separated by hyphens, or a range of VLAN IDs separated by entering
the starting and ending VLAN IDs separated by a space.
Catalyst 2960-X Switch Security Configuration Guide, Cisco IOS Release 15.0(2)EX
OL-29048-01 223
Configuring DHCP
Enabling DHCP Snooping and Option 82

Cisco Catalyst 250 Series Specifications

General

Brand	Cisco
Model	Catalyst 250 Series
Category	Switch
Language	English