Configuring Headend Broadband Access Router Features
Spectrum Management
Per-Modem and per-Host Access Lists
You can preconfigure the filters by using the CLI following standard Cisco IOS access list and access group configuration procedures. You can assign these filters to a user or modem by using the CLI or SNMP.
This feature also supports traps to inform the CMTS about the online/offline status of modems.
Basic Wiretap Support
Cisco uBR7200 series routers provide support for a basic wiretap facility for VoIP calls, as required by the United States Federal Communications Assistance for Law Enforcement Act (CALEA). The wiretap facility is based on the MAC address of the cable modem, so it can be used for either data or digitized voice connections.
The feature is controlled by the cable intercept command, which requires a MAC address, an IP address, and a UDP port number as its parameters. When activated, the Cisco uBR7200 series universal broadband router examines each packet for the desired MAC address; when a matching MAC address is found (for either the origination or destination endpoint), a copy of the packet is encapsulated into a UDP packet, which is then sent to the specified server at the given IP address and port.
Inter-Switch Link Bridging on Noncable Interfaces
Integrated Time-of-Day Server
Cisco uBR7200 series routers are able to obtain the correct
Integrated DHCP Server
Cisco uBR7200 series routers offer an integrated DHCP server to simplify the provisioning of cable modems.
Spectrum Management
Due to the nature of CATV technology, upstream noise management is a significant issue. Frequency bands must have a sufficient
Cisco IOS Multiservice Applications Configuration Guide
