Chapter 20: CPE Device Classes
STANDARD Revision 1.0
C4® CMTS Release 8.3 User Guide
© 2016 ARRIS Enterprises LLC. All Rights Reserved.
649
SAFE
Initial Portion of Option 60 to Match
PS
CableHome
The SAFEs listed in the above table are all CPEs attached to or integrated with a CM. In this context, the term CPE has more
than one meaning and can mean either of the following:
A default device class.
A device with an IP address behind a CM.
DHCP Relay Agent — If the DHCP Relay Agent is unable to identify the device class of a SAFE based on the Vendor Class
Identifier option 60 in the DHCP Discover packet, it assigns it a device class of CPE.
Rapid Commit
Rapid-Commit is the process or option by which a DHCP client obtains configurable parameters from a DHCP server by
using a rapid DHCPv6 two-message exchange. The messages that are exchanged between the two routers are called the
DHCPv6 Solicit and Reply messages.
DHCP Helper Address Provisioning
The Device Classes feature allows the customer to configure different DHCP servers for use by different device classes by
defining the DHCP server address for a given device type on the cable interface.
Configure Helper Address Command
The following command configures the DHCP helper address based on device class type:
configure interface cable-mac <mac> cable helper-address <DHCP Server IP address> [cable-modem |
host | cpe | mta | ps | stb | any] no
Some notes on the syntax of this command:
The user may only enter up to one device class per command line.
If the user does not provide the optional class of device then it defaults to any.
The term any means all devices, CMs, and CPE types.
The term host means all CPE types. It does not include the cable modem.