Cisco DPC2434 Installation And Operation Manual page 30

Chapter 1 Introducing the Model DPC2434 and EPC2434 VoIP Wireless Home Gateways
Establish IP Connectivity
After completing the ranging and automatic adjustments stage, the wireless home
gateway attempts to establish Internet Protocol (IP) connectivity. In this stage, the
wireless home gateway obtains network connection information and a wireless
home gateway IP address from provisioning servers that are located on the network
side of the CMTS interface.
The wireless home gateway achieves this connectivity using a protocol called
Dynamic Host Configuration Protocol (DHCP).
Note: If the wireless home gateway fails to establish IP connectivity, it terminates the
session and restarts the initialization process at the scan for downstream channel
stage.
Establish Time of Day
After the wireless home gateway establishes IP connectivity, the wireless home
gateway requests the time of day from the network interface. This stage allows the
wireless home gateway to know the system time so that when the wireless home
gateway logs an event, it associates a time with that event.
Note: The wireless home gateway can operate without establishing the time of day;
however, it logs the failure, generates an alert to simple network management
protocol (SNMP), and then proceeds to the next stage. The wireless home gateway
periodically repeats this stage to attempt to establish the time of day.
Transfer Operational Parameters
After the wireless home gateway requests the time of day, the wireless home
gateway then requests the transfer of the wireless home gateway configuration file.
The wireless home gateway makes the request to the Trivial File Transfer Protocol
(TFTP) server. The configuration file contains parameters for how the system
operator wants the wireless home gateway to function on the cable network.
Typical operation parameters for the wireless home gateway include:
Upstream and downstream rate limits

Specific frequencies

Number of CPE devices
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IP filters

Port filters

MAC/LLC filters
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Vendor-specific settings

Software version installed
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12 78-4011351-01 Rev B