Installation guide

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Cisco uBR7100 Series Universal Broadband Router Software Configuration Guide
OL-2238-03
Chapter 3 Configuring the Cisco Cable Interface
Activating Packet Intercept Capabilities
To disable IP broadcast echo when it is enabled, enter the no cable ip-broadcast-echo command in cable
interface configuration mode.
Verifying IP Broadcast Echo
To determine if IP broadcast echo is activated or deactivated, enter the more system:running-config
command, and look for a notation in the cable interface configuration information:
CMTS01# more system:running-config
Building configuration...
Current configuration:
!
interface Cable1/0
ip address 1.1.1.1 255.255.255.0
no keepalive
cable ip-broadcast-echo
cable downstream annex B
cable downstream modulation 64qam
cable downstream interleave-depth 32
cable upstream 0 frequency 15008000
no cable upstream 0 shutdown
Activating Packet Intercept Capabilities
To activate packet intercept functionality, use the following commands in cable interface configuration
mode.
Command Purpose
CMTS01(config-if)# cable intercept
xxxx.xxxx.xxxx
Specify a MAC address on the cable network for which
interception capabilities are to be activated. A limit of 10
MACs exist.
CMTS01(config-if)# no cable intercept
xxxx.xxxx.xxxx
Disable interception after it is enabled.