Allied Telesis AT-8100 Series User Manual

Page 510

Chapter 30: DHCP Relay Commands

510

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 495
and “NO IP DHCP-RELAY” on page 503.)

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 500

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 496 and “NO IP
DHCP-RELAY AGENT-OPTION” on page 504.

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 497 and
“NO IP DHCP-RELAY AGENT-OPTION
CHECKING” on page 505.

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 498.

List of servers

Table 48. SHOW IP DHCP-RELAY Command (Continued)

Field

Definition