This section identifies the mapping of Prime Cable Provisioning properties to the eRouter DHCP options used for eRouter provisioning and includes:

IPv4 Options

• DNS_SERVER address – Option 6 (mandatory option)

• V4EROUTER_CONTAINER - Option 125.3

IPv6 Options

• SOL_MAX_RT - Option 82

• EROUTER_CONTAINER - Option 17.1027

The minimum required property is configured, during installation, in the BPR_HOME/cnr_ep/conf/cnr_ep.properties file.

Add the below property to cnr_ep.properties file if not present

/eRouter/dns/server=<PNR IP Address>

This file resides on the Prime Network Registrar host. The property defined in cnr_ep.properties is applied to all eRouter devices in the provisioning group. Like other Prime Cable Provisioning properties, you can also set these properties on a device or a Class of Service or DHCP criteria. Setting them at the RDU, using either the administrator user interface or the application programming interface (API), overrides the corresponding values set in the cnr_ep.properties file.

The SOL_MAX_RT is the Solicit maximum retransmit time and value ranges from 60-86400.

The EROUTER_CONTAINER option is a set of one or more TLV encoded options. The utility classes ERouterV4Container and ERouterV6Container can be used to add DHCPv4 and DHCPv6 options to the EROUTER_CONTAINER option.

A sample code snippet below illustrates the setting of ERouterV4Container in device properties:

Map changeProp = new HashMap<String,Object>();
ERouterV4Container erouter_v4_cont = new ERouterV4Container();
try
    {
    // here we give the encoding type, option number and value.
    // below is DHCPv4 Option 1 - Subnet Mask. Since it is a mask, the encoding type is IPAddress
    erouter_v4_cont.addSubOption("IPAddress",1,new String[]{"255.255.255.0"}); 
    // DHCPv4 option 5 - Name Server
    erouter_v4_cont.addSubOption("IPAddressN",5,new String[]{"192.168.2.3"});
    changeProp.put(ERouterKeys.EROUTER_V4_CONTAINER, erouter_v4_cont.toByteArray());
    }catch(Exception ee)
    {
       ee.printStackTrace();
    }
    myBatch.changeProperties(modemMACAddress,changeProp, null);

This section identifies the mapping of Prime Cable Provisioning properties to the RPD DHCP options used for RPD provisioning. The RPD receives a list of CCAP core addresses from the DHCP server and the RDU can populate the newly added DHCP options in the DHCP response configuration. The following DHCP options are added in RPD specification to configure the CCAP core addresses:

• IPv4 Option: DHCP vendor specific sub-option - 43.61

• IPv6 Option: OPTION_VENDOR_OPTS sub-option - 17.61

This section identifies the mapping of Prime Cable Provisioning properties (/IPDevice/dns/servers) to the IPDevice DHCP options used for IPDevice provisioning and includes:

• IPv4 Option: DNS_SERVER address – Option 6

This dns property can be used for all the types of devices. Like other Prime Cable Provisioning properties, you can also set this property on any property hierarchy level using either the administrator user interface or the application programming interface (API).

Note	For eRouter and packetCable devices DNS server address can be added using /eRouter/dns/server, /pktcbl/dns/primary and /pktcbl/dns/secondary properties. However, /IPDevice/dns/servers will take higher precedence if it is added with these properties.