Configure DHCP Relay on an IP Interface
Use this procedure to view or modify configuration information about the DHCP relay on IP interfaces.
Procedure
- In the navigation pane, expand .
- Select DHCP Relay.
- Select the Interfaces tab.
- To change the configuration information, select the field in the row for the required interface, and then type or select a new value.
- Select Apply.
Interfaces Field Descriptions
Use the data in the following table to use the Interfaces tab.
Variable |
Value |
---|---|
IfIndex |
Display a read-only interface number that represents a physical interface, or the VLAN logical interface. |
MaxHop |
Specifies the maximum number of hops a DHCP packet can take from the DHCP client to the DHCP server. The default is 4. |
MinSec |
Specifies the minimum number of seconds to wait between receiving a DHCP packet and forwarding the DHCP packet to the DHCP server. A value of 0 indicates that forwarding is done immediately. The default value is 0. |
Mode |
Specifies the type of DHCP packet required. The options are:
The default is both. |
AlwaysBroadcast |
Specifies if DHCP Reply packets can be sent as a broadcast to the DHCP client. The default is false. |
CircuitId |
Specifies whether DHCP Relay inserts the option 82 circuit ID information into the DHCP packets before sending the DHCP packets to the DHCP server. The default is false. |
RemoteId |
Specifies whether DHCP Relay inserts the option 82 remote ID information into the DHCP packets before sending the DHCP packets to the DHCP server. The default is false. |
Trusted |
Specifies if DHCP packets come through a trusted DHCP circuit. Only packets with GIADDR configured to 0 and containing option 82 are forwarded if the circuit is trusted. The default value is false. |
SmartRelayMode |
Enables DHCP Smart Relay on a VLAN interface in one of the following modes:
By default, Smart Relay is disabled. |