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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Be aware that:
Unlike provisioning the helper-address, each device class you wish to be represented with this secondary address must
be on the same command line.
Subsequent executions of this command overwrites previous provisioning.
If none of the CPE types are specified, then the C4/c CMTS treats the secondary DHCP giaddr like a host, that is, all
CPEs.
The no version of this command removes all DHCP giaddr provisioning from the secondary interface regardless of the
CPE device types provided on the command line of that no command. All other secondary interface provisioning
remains.
Secondary DHCP GIADDR Usage
The following rules apply to how the secondary DHCP giaddr is used:
If the interface does not have policy enabled, then the primary address for that interface is used for all CPE devices.
The command to apply policy is:
configure interface cable <WORD> cable dhcp-giaddr policy
If a DHCP giaddr is not provisioned for the specific kind of device and policy is enabled, then the first secondary
address for that interface is used as the DHCP giaddr .
If a single secondary DHCP giaddr is provisioned for a given class of CPE device and policy is enabled, then that address
will be used as the DHCP giaddr.
If multiple secondary DHCP giaddrs are provisioned for a given class of CPE device and policy is enabled, then the DHCP
giaddrs are selected in a round-robin fashion.
The round-robin selection for a specific class of CPE device does not take into account the secondary DHCP giaddr
provisioning for other classes of CPE device.
Filter Groups Based on Device Class
Upstream and downstream filter groups may be assigned to a CPE based on its device class.