Cisco Systems Broadband Access Center manual Configuring Network Registrar and a Cmts

Chapter 4 Installing in a Lab Environment

Configuring Network Registrar and a CMTS

Caution After installation is complete, you must install your licenses and the chain of certificates or the KDC will not start.

Configuring Network Registrar and a CMTS

For BACC to function, you need to set up Network Registrar client-classes, policies, scopes, and selection tags. You also need to perform some configuration of CMTS devices.

To configure Network Registrar and CMTS devices, complete these steps:

Step 1 Set up scopes on your Network Registrar server. For example:

<NR_HOME>/usrbin/nrcmd -N <USER_NAME> -P <PASSWORD> -b <

<BACC_HOME>/cnr_ep/samples/bpr_cnr_hsd_sample_config.nrcmd

Note The <BACC_HOME>/cnr_ep/samples/bpr_cnr_hsd_sample_config.nrcmd command runs a sample Network Registrar configuration script, which defines client-classes, policies, scopes, selection tags and other related information. You must update this file to reflect the IP address settings on your network. For more information about this file, see “Network Registrar Configuration File Example”. For more detailed information about defining client-classes, policies, scopes, and selection tags, see the Network Registrar User’s Guide.

Step 2 Enable the cable interface or interfaces on your CMTS with the correct IP addresses and DHCP helper-address. For example, you might edit the CMTS configuration as follows:

interface Cable3/0

ip address 192.168.5.0 255.255.255.0

ip address 192.168.6.0 255.255.255.0 secondary ip address 192.168.7.0 255.255.255.0 secondary ip address 192.168.8.0 255.255.255.0 secondary

Note The IP addresses used here are identical to those in the sample script supplied with the BACC product. You must edit these addresses to match your own IP address range. Do not attempt to use these IP addresses in an operational environment.

no ip directed-broadcast no keepalive

cable downstream annex B

cable downstream modulation 64qam cable downstream interleave-depth 32 cable downstream frequency 477000000 cable upstream 0 frequency 26000000 cable upstream 0 power-level 0

no cable upstream 0 shutdown cable dhcp-giaddr primary

cable helper-address <IP Address Of Your Network Registrar Server>

Note A sample configuration script file is included with the BACC product. This file, called

cmts_sample.cfg, is located in the <BACC_HOME>/cnr_ep/samples directory.

Cisco Broadband Access Center for Cable Installation Guide 2.7

4-6 OL-19105-01