Accton Technology ES3528M-SFP manual Ip dhcp snooping verify mac-address

DHCP Snooping Commands 4

ip dhcp snooping verify mac-address

This command verifies the client’s hardware address stored in the DHCP packet against the source MAC address in the Ethernet header. Use the no form to disable this function.

Syntax

[no] ip dhcp snooping verify mac-address

Default Setting

Enabled

Command Mode

Global Configuration

Command Usage

If MAC address verification is enabled, and the source MAC address in the Ethernet header of the packet is not same as the client’s hardware address in the DHCP packet, the packet is dropped.

Example

This example enables MAC address verification.

Console(config)#ip dhcp snooping verify mac-address

Console(config)#

Related Commands

ip dhcp snooping (4-317)

ip dhcp snooping vlan (4-319) ip dhcp snooping trust (4-320)

ip dhcp snooping information option

This command enables the DHCP Option 82 information relay for the switch. Use the no form to disable this function.

Syntax

[no] ip dhcp snooping information option

Default Setting

Disabled

Command Mode

Global Configuration

Command Usage

•DHCP provides a relay mechanism for sending information about the switch and its DHCP clients to the DHCP server. Known as DHCP Option 82, it allows compatible DHCP servers to use the information when assigning IP addresses, or to set other services or policies for clients.

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