Table Of Contents
CableHome Configuration
Non-Secure CableHome Provisioning Flow
Configuring CableHome
Configuring Network Registrar
Configuring the RDU
Configuring the Device Provisioning Engine
CableHome Configuration
This chapter describes the activities that must be performed to ensure a satisfactory CableHome deployment. There are two versions of the CableHome technology; secure (SNMP) and non-secure (DHCP). This chapter deals exclusively with the non-secure version.
Non-Secure CableHome Provisioning Flow
It is extremely useful to identify which step in the non-secure CableHome provisioning flow is failing before attempting to diagnose other details. Figure 6-1 illustrates a summary of the key provisioning flows and the following steps describe those flows.
Figure 6-1 Non-Secure CableHome Flows
1. 
DHCP:1—The WAN-Man obtains its IP lease during this step. The IP lease also specifies that the portal service is to be provisioned in the DHCP (non-secure) mode, the TFTP server and the configuration file.
2. TOD:2—Portal services achieve time synchronization with a time of day server in the MSO's network.
3. TFTP:3—Portal services obtain a configuration file in the manner similar to that described in step 1.
4. TFTP:4—Provided that the configuration file acquired in step 3 contains firewall information, portal services may also acquire a firewall configuration file.
5. SYSLOG/SNMP:5—Once successfully configured. Portal services send either a SYSLOG message or a SNMP PDU to inform BACC that it has been successfully configured.
6. DHCP:6—Provided that the portal services configuration file acquired in step 3 contains a MIB setting that sets the number of WAN-Data IP address to one or more, the portal services WAN-Data obtains the required number of IP addresses.
Configuring CableHome
This section describes how to configure Network Registrar, the CMTS.
Configuring Network Registrar
Step 1 Create selection tags for provisioned and unprovisioned WAN-Man and also for provisioned WAN-Data.
Step 2 Configure unprovisioned and provisioned client classes and scopes for cable modems, as specified in Network Registrar User's Guide.
Step 3 Configure unprovisioned and provisioned client classes and scopes for WAN-Man.
Step 4 Configure provisioned client classes and scopes for WAN-Data.
Step 5 Add routes to all the subnets.
Configuring the RDU
To configure CableHome support into the RDU perform these configurations:
• Configuring CableHome WAN-Man
• Configuring CableHome WAN-Data
Configuring CableHome WAN-Man
Step 1 Create a DHCPCriteria for the provisioned WAN-Man. To do this, set the client class to a client-class name that is configured in Network Registrar CableHome WAN-Man.
Step 2 Create a class of service for the provisioned WAN-Man.
•Set the /cos/chWanMan/file to a CableHome configuration file appropriate for the class of service.
•Set the /chWanMan/firewall/file to the desired Firewall configuration file.
Configuring CableHome WAN-Data
Configure these WAN-Data parameters whenever you want portal services to obtain the WAN-Data IP addresses:
Step 1 Create DHCPCriteria for WAN-Data.
Step 2 Create ClassOfService for WAN-Data.
Configuring the Device Provisioning Engine
To configure the DPE to support the CableHome technology:
Step 1 Open the CableHome device provisioning WAN-Man config file and verify that DHCP Option 60 is set to either CableHome1.0 or CableHome1.1. Some manufacturers use a proprietary MIB object to instruct a device to behave as either a pure cable modem, a non-CableHome router, or as a CableHome router. The device appears as a Computer whenever the device DHCP packet does not contain CableHome1.0 or CableHome1.1 in the DHCP Option 60.
Step 2 If you want the portal services to obtain IP addresses for WAN-Data:
•Ensure that the WAN-Man configuration file contains TLV 28 that sets cabhCdpWanDataIpAddrCount to a value that is greater than 0.
•In the cable modem configuration file, set the max number of CPEs to include the number of WAN-Data IP addresses.
Step 3 To enable self-provisioning when the CableHome device boots:
•In the unprov-wan-man.cfg portal services configuration file, set the portal services in the passthrough mode
•In the cable modem configuration file, set the maximum number of CPEs to at least 2 to allow provisioning of the WAN-Man and a computer. The computer can directly access sign-up web pages to be self-provisioned.
Step 4 Close and save the CableHome configuration file.
