Allied Telesis AT-FS970M Series User Manual

Page 488

Chapter 28: DHCP Relay Commands

488

The INTERFACE option may be used to determine the status of the agent
on the VLANs. The status is either is enabled or disabled. (The agent is
enabled and disabled on the VLANs with “IP DHCP-RELAY” on page 473
and “NO IP DHCP-RELAY” on page 481.)

Examples

This example displays the settings of the DHCP relay agent on the switch:

awplus> enable
awplus# show ip dhcp-relay

This example displays the status of the DHCP relay agent on a VLAN with
the VID 5:

awplus> enable
awplus# show ip dhcp-relay interface vlan5

Maximum DHCP
message length

The maximum length permitted for DHCP
requests from clients when the policy is set to the
append policy. This parameter is set with “IP
DHCP-RELAY MAX-MESSAGE-LENGTH” on
page 478

Insertion of Relay
Agent Option

The status of adding the switch’s option 82
information into the client DHCP requests. This
parameter is configured with “IP DHCP-RELAY
AGENT-OPTION” on page 474 and “NO IP
DHCP-RELAY AGENT-OPTION” on page 482.

Checking if Relay
Agent Option

The status of whether or not the switch discards
DHCP requests that have option 82 information
and a null IP address (0.0.0.0) in the giaddr fields.
This is configured with “IP DHCP-RELAY
AGENT-OPTION CHECKING” on page 475 and
“NO IP DHCP-RELAY AGENT-OPTION
CHECKING” on page 483.

Relay Information
policy

The response of the DHCP relay agent to client
packets containing option-82 information. This
parameter is controlled with “IP DHCP-RELAY
INFORMATION POLICY” on page 476.

List of servers

Table 46. SHOW IP DHCP-RELAY Command (Continued)

Field

Definition