KB.15.15

the routing switch defaults to the mac option.

See “Option 82 field content” (page 240).

• ip: Specifies the IP address of the

VLAN on which the client DHCP packet

enters the switch.

• mac: Specifies the routing switch's

MAC address. (The MAC address used

is the same MAC address that is

assigned to all VLANs configured on

the routing switch.) This is the default

setting.

• mgmt-vlan:Specifies the IP address

of the (optional) management VLAN

configured on the routing switch.

Requires that a management VLAN is

already configured on the switch. If the

management VLAN is multinetted, the

primary IP address configured for the

management VLAN is used for the

remote ID.

If you enter the dhcp-relay option

82 command without specifying either

ip or mac, the MAC address of the

switch on which the packet was

received from the client is configured

as the remote ID. For information about

the remote ID values used in the Option

82 field appended to client requests,

see “Option 82 field content”

(page 240).

Example

In the routing switch shown below, option 82 has been configured with mgmt-vlan for the remote

ID.

HP Switch(config)# dhcp-relay option 82 append mgmt-vlan

The resulting effect on DHCP operation for clients X, Y, and Z is shown in Table 28 (page 236).

Figure 46 DHCP Option 82 when using the management VLAN as the remote ID suboption

Configuring Option 82 235