PurposeCommand or Action
Enters interface configuration mode for the
specified cable interface.
interface cable interface
Example:
Router(config)# interface cable 3/0
Step 5
(Optional, but recommended) Configures the
interface to accept traffic only from the associated
ip igmp access-group access-list [version
]
Step 6
access list, so that only authorized devices are
allowed to access the DSG tunnels.
Example:
Router(config-if)# ip igmp
access-group 90
Exits interface configuration mode and returns to
privileged EXEC mode.
end
Example:
Router(config-if)# end
Step 7
Disabling A-DSG Forwarding on the Primary Channel
You can disable A-DSG forwarding per primary capable interface.
Procedure
PurposeCommand or Action
Enters global configuration mode.configure terminal
Example:
Router# configure terminal
Step 1
Specifies the modular cable interface and enters
cable interface configuration mode. Variables for
interface modular-cable slot /subslot/port
:interface-number
Step 2
this command may vary depending on the Cisco
Example:
Router(config)# interface
modular-cable 1/0/0:0
CMTS router and the Cisco IOS-XE software
release.
Disables A-DSG forwarding and DCD messages
on the primary capable interface.
cable downstream dsg disable
Example:
Router(config-if)# cable downstream
dsg disable
Step 3
Cisco cBR Series Converged Broadband Routers Application—Voice and Video Configuration Guide
28
Advanced-Mode DOCSIS Set-Top Gateway 1.2 for the Cisco CMTS Routers
Disabling A-DSG Forwarding on the Primary Channel
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