Chapter 20: CPE Device Classes
STANDARD Revision 1.0
C4® CMTS Release 8.3 User Guide
© 2016 ARRIS Enterprises LLC. All Rights Reserved.
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The term host is used as an all-inclusive term which encompasses all the CPE device classes.
If a CPE device is detected but is not included in one of the new classes of device it is considered a generic CPE device.
When an C4/c CMTS is upgraded...
The DHCP helper addresses that are assigned to CPEs (hosts) are assigned to each of the new device class types
The secondary IP addresses that are tagged for use as a DHCP gateway (giaddr) packets for CPEs (hosts) are tagged
as giaddr secondary addresses for each of the new device class types
The default filter groups assigned to CPEs (hosts), both at the chassis and interface level, are assigned to each of
the new device class types.
Dynamic Host Configuration Protocol (DHCP)
DHCP is a network protocol used to configure network devices, such as CPE devices, so that they can communicate on an
IP network.
DHCP Client
A DHCP client uses the DHCP protocol to acquire configuration information, such as:
An IP address.
A default route.
One or more Domain Name Server (DNS) addresses from a DHCP server.
The DHCP client then uses this information to configure its host.
Once the configuration process is completed, the host is able to communicate on the internet.
DHCP Server
The DHCP server maintains a database of available IP addresses and configuration information.
When the DHCP server receives a request from a client, it...
Determines the network to which the DHCP client is connected
Allocates an IP address or prefix that is appropriate for the client