Dhcp Rate Limiting - Motorola BSR 2000 Configuration And Management Manual

BSR 2000 Configuration and Management Guide
3. Use the ip dhcp relay information option command in Interface Configuration
Note: The ip dhcp relay information option command must be entered to
enable the DHCP relay information option function. If the DHCP relay
information option function is not enabled, CMs cannot register and go
on-line.
If you are configuring two MAC domains on the CMTS, the ip dhcp relay
information option command must be entered for each MAC domain. If this
command is not entered in for each domain, CMs cannot register in that
domain.
4. Optionally use the ip dhcp relay information spectrum-group-name command
Note: If a DHCP client on a particular subnet is using an upstream frequency
that is not configured as a member of a spectrum group, the spectrum group
name is not inserted by the DHCP relay agent into the DHCP discover
packet.

DHCP Rate Limiting

DHCP Rate Limiting prevents a potential flood of DHCP Request/Discover packets
to a DHCP server. DHCP packet rate limiting applies to both CM and CPE devices.
By default, this feature is disabled.
Note: Once enabled for either CPEs, CMs, or both types of devices, rate
limiting applies to all DHCP Request/Discover packets on a per device basis.
The DHCP Request Rate Limiting feature does not support specifying a
particular device for which rate limiting will be applied.
The following CLI commands control the DHCP Rate Limiting feature:
6-4
mode to enable the DHCP relay agent to insert a MAC address (Agent Remote
ID) only into a client's DHCP packet:
MOT(config-if)# ip dhcp relay information option
in Interface Configuration mode to enable the DHCP relay agent to insert the
spectrum group name (Circuit ID) into all of the DHCP packets:
MOT(config-if)# ip dhcp information spectrum-group-name
MGBI
Release 1.0
526360-001-00 Rev. B