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11-6

Configuring Advanced Threat Protection

DHCP Snooping

Enabling DHCP Snooping on VLANS

DHCP snooping on VLANs is disabled by default. To enable DHCP snooping

on a VLAN or range of VLANs enter this command:

HP Switch(config)# dhcp-snooping vlan <vlan-id-range>

You can also use this command in the vlan context, in which case you cannot

enter a range of VLANs for snooping.

Below is an example of DHCP snooping enabled on VLAN 4.

Figure 11-3. Example of DCHP Snooping on a VLAN

Configuring DHCP Snooping Trusted Ports

By default, all ports are untrusted. To configure a port or range of ports as

trusted, enter this command:

HP Switch(config)# dhcp-snooping trust <port-list>

You can also use this command in the interface context, in which case you are

not able to enter a list of ports.

HP Switch(config)# dhcp-snooping vlan 4

HP Switch(config)# show dhcp-snooping

DHCP Snooping Information

DHCP Snooping : Yes

Enabled Vlans : 4

Verify MAC : Yes

Option 82 untrusted policy : drop

Option 82 Insertion : Yes

Option 82 remote-id : mac

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HP E3800 Series Specifications

General