Cisco Systems Broadband Access Center manual ip dhcp relay information option

Chapter 4 Installing in a Lab Environment

Configuring Network Registrar and a CMTS

Step 3 To configure your CMTS to insert the DHCP relay agent information option in forwarded BOOTREQUEST messages, use this Cisco IOS command:

ip dhcp relay information option

The default device detection logic in BACC uses DHCP option 82 information (relay-agent information) to detect devices.

Step 4 To configure your CMTS so that it does not validate the relay agent information option in forwarded BOOTREPLY messages, use this IOS command:

no ip dhcp relay information check

Cisco Broadband Access Center for Cable Installation Guide 2.7

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