Display Basic Cable Modem Gateway Information
68-4004214-01 Rev D
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Manual Operation
When Access Protection is set to
Enable
by the end user of the WebWizard, inbound
data destined for the CPE is blocked at the cable modem gateway. This data is not
allowed to pass through to the CPE, but the local network on the CPE side of the
cable modem gateway remains fully operational. This fully operational state
includes maintaining an “up” status for the link between the cable modem gateway
and the CPE.
Important:
When cable modem gateway access protection is set to
Enable
, the
Network Administrator has the ability to operate, maintain, and provision the cable
modem gateway at all times just as though there were no access protection in place.
The exception to this is that the network operator will not be able to communicate
directly with any CPE while the cable modem gateway is in the access protection
enabled mode, even though the link status to the CPE may read “Operational.”
Notes:
CPE devices bridged together between the USB and Ethernet ports are still able
to communicate with each other, and the Ethernet link status responds as
“Operational” should the Network Administrator ping the cable modem
gateway to determine the status of the CPE links.
After Cable Modem Access Protection is enabled by the CPE through the
WebWizard, the cable modem gateway remains in the Access Protection mode
until the mode is manually set to
Disable
by the CPE through the WebWizard
interface, or, if necessary, by pressing the cable modem gateway
Reset
button.
Automatic Mode
Cable Modem Access Protection also supports an
Automatic
mode of CPE access
protection. In this mode, the cable modem gateway monitors outbound data from
the CPE to the network, and, based on that traffic, makes a decision as to when to
activate the access protection mode.
If no user outbound activity occurs (no user-generated upstream transactions) for a
user-defined period of time, the cable modem gateway activates the protection mode
automatically and remains in that mode until it detects outbound data activity.
When outbound data activity resumes, the cable modem gateway automatically
disables the access protection mode and resumes normal operation.
Important:
The user defines the time setting for the duration of inactivity that must
occur before the system automatically enables the access protection mode.
Note:
Some background programs running on the CPE may prevent the cable
modem gateway from going into Access Protection. These programs generate
Internet traffic on a regular basis that can reset the automatic timer.
