Brocade FastIron Ethernet Switch Security Configuration Guide - Manual (Page 347)

Use the show interfaces ethernet command to view the subscriber ID configured on a port.Refer to
Viewing the status of DHCP option 82 and the subscriber id on page 348.
Viewing information about DHCP option 82 processing
Use the commands in this section to view information about DHCP option 82 processing.
Viewing the circuit Id, remote id, and forwarding policy
Use the show ip dhcp relay information command to obtain information about the circuit ID, remote
ID, and forwarding policy for DHCP option 82. The following shows an example output.
device#show ip dhcp relay information
Relay Information: Format: Circuit-ID : vlan-mod-port
Remote-ID : mac
Policy : keep
Syntax: show ip dhcp relay information
Output for the ip dhcp relay information command TABLE 34
Field Description
Circuit-ID The agent circuit ID format:
• vlan-mod-port - The default circuit ID format.
Remote-ID The remote ID format. This field displays mac , which is the default remote ID format.
Policy How the Brocade switch processes relay agent information it receives in DHCP messages:
• drop - drops the relay agent information
• keep - keeps the relay agent information
• replace - replaces the relay agent information with its own
Viewing the ports on which DHCP option 82 is disabled
Use the following command to refer which port in a DHCP snooping VLAN has DHCP Option 82
disabled.
device#show ip dhcp snooping vlan 1
IP DHCP snooping VLAN 1: Enabled
Trusted Ports : ethe 3
Untrusted Ports : ethe 1 to 2 ethe 4 to 24
Relay Info. disabled Ports: ethe 10
Syntax: show ip dhcp snooping vlan vlan-id
Viewing information about DHCP option 82 processing
FastIron Ethernet Switch Security Configuration Guide 347
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