Netgear M4100-D12G (GSM5212v1h1) - 10‐port GE + 2 GE Combo L2 Managed PD Switch Guía Del Software

You can enable the switch to operate as a DHCP Layer 2 relay agent to relay DHCP requests 
from clients to a Layer 3 relay agent or server. The Circuit ID and Remote ID can be added to 
DHCP requests relayed from clients to a DHCP server. This information is included in DHCP 
Option 82, as specified in sections 3.1 and 3.2 of RFC3046.

Use this command to enable the DHCP Layer 2 Relay agent for an interface, a range of 
interfaces, or all interfaces. The subsequent commands mentioned in this section can be 
used only when the DHCP L2 relay is enabled.

Global Config

Interface Config

Use this command to disable the DHCP Layer 2 relay agent for an interface or range of 
interfaces.

Global Config

Interface Config

Use this parameter to set the DHCP Option-82 Circuit ID for a VLAN. When enabled, the 
interface number is added as the Circuit ID in DHCP option 82. Vlan-list range is 1–4093. 
Separate non-consecutive IDs with a comma (,), and do not insert spaces or zeros in 
between the range. Use a dash (–) for the range.

Use this parameter to clear the DHCP Option-82 Circuit ID for a VLAN.

Format

dhcp l2relay 

Modes

Format

no dhcp l2relay 

Modes

Format

dhcp l2relay circuit-id vlan <vlan-list>

Mode

Global Config

Format

no dhcp l2relay circuit-id vlan <vlan-list>

Mode

Global Config