Cisco Systems uBR7246 manual Set Optional IP Parameters, Activate Proxy ARP Requests

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Activate Proxy ARP Requests

Activate Proxy ARP Requests

To activate proxy ARP for host-to-host communications, use the following command in cable interface configuration mode:

Command

Purpose

cable proxy-arp

Enable proxy ARP on the cable interface.

 

 

Validation Tips

To verify if proxy ARP has been activated or deactivated, enter the command more system:running-configand look for the cable interface configuration information. If proxy ARP has been activated, it does not appear in this output. If proxy ARP has been deactivated, it appears in the output as no cable proxy-arp as shown in this command output excerpt:

router# more system:running-config

Building configuration...

Current configuration:

!

interface Cable6/0

ip address 1.1.1.1 255.255.255.0 no keepalive

no cable proxy-arp

cable insertion-interval 150000 cable downstream annex B

cable downstream modulation 64qam cable downstream interleave-depth 32 cable downstream symbol-rate 5056941 cable upstream 0 frequency 15008000 cable upstream 0 fec

cable upstream 0 scrambler no cable upstream 0 shutdown

!

Troubleshooting Tips

If you are having trouble, make sure you entered the correct port and modem card slot number when you activated proxy ARP.

Set Optional IP Parameters

There are additional IP parameters that you can optionally set to enable downstream echoing of upstream data.

To configure optional IP parameters, perform the following tasks:

Activate IP Multicast Echo

Activate IP Broadcast Echo

Note The default values for the commands used in these configuration steps are, in most cases, adequate to configure the Cisco uBR7246.

Configuring Cisco uBR7246 Universal Broadband Router Features VC-155

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Contents Page Topology for uBR7246 Universal Broadband Benefits of Cisco uBR7246 Description of Cisco uBR7246 Cable RouterList of Terms Prerequisite Tasks Supported MIBs and RFCs Configure the Downstream Cable InterfaceSet the Downstream Center Frequency Command PurposeTroubleshooting Tips Set the Downstream Symbol RateSet the Downstream Modulation Set the Downstream Mpeg Framing Format Annex a or Annex BSet the Downstream Interleave Depth Activate the Downstream Carrier Step Command PurposeSet the Upstream Frequency Configure the Upstream Cable InterfaceSet the Upstream Input Power Level Activate Upstream Forward Error Correction Activate the Upstream Scrambler Router# more systemrunning-configActivate the Upstream Ports Configure and Activate Baseline Privacy Configure Traffic Encryption Key Privacy Configure Kek Encryption Key PrivacyActivate Baseline Privacy Configure and Activate Frequency AgilityCreate Spectrum Groups Configure and Activate Spectrum Groups Activate IP Address Resolution ProtocolActivate Host-to-Host Communication Proxy ARP Activate Address Resolution Protocol RequestsActivate Proxy ARP Requests Set Optional IP ParametersActivate IP Broadcast Echo Activate IP Multicast EchoManage Cable Modems on the HFC Network Activate Cable Modem AuthenticationActivate Cable Modem Upstream Address Verification Activate Cable Modem Insertion Interval Command TaskEnter the global configuration mode. configure terminal Universal Broadband Features Configuration Example

uBR7246 specifications

The Cisco uBR7246 is a versatile edge router designed primarily for cable operators wishing to deliver high-speed Internet, telephony, and video services over hybrid fiber-coaxial (HFC) networks. This router is part of Cisco's extensive line of broadband access solutions, addressing the increasing demand for bandwidth among consumers and businesses alike.

One of the uBR7246's main features is its ability to support a wide range of broadband technologies including DOCSIS (Data Over Cable Service Interface Specification) and EuroDOCSIS. The router is designed to facilitate the delivery of high-speed data services while allowing for flexible configurations that adapt to evolving network technologies. This is crucial for operators looking to maximize their network efficiency and future-proof their infrastructure.

The uBR7246 is equipped with multiple modular slots, enabling service providers to customize the router according to their specific needs. High-capacity interface cards can be added to support various types of connections, such as Ethernet and TDM (Time Division Multiplexing), thus offering scalability. With support for both DOCSIS 1.0 and advanced versions like DOCSIS 3.0 and 3.1, the router can handle increased data rates and offer maximum efficiency in terms of bandwidth utilization.

Security features are integral to the uBR7246, as it employs advanced measures such as encryption and robust authentication protocols to ensure that subscriber data remains secure. This is particularly vital in an era where cyber threats are pervasive, and customer trust is essential.

In terms of performance, the uBR7246 offers exceptional throughput, capable of efficiently managing vast amounts of traffic without degradation of service. Advanced Quality of Service (QoS) mechanisms help prioritize traffic, ensuring that high-demand applications like video streaming and VoIP receive the necessary bandwidth they require for optimal performance.

The router is also designed with operational ease in mind, offering centralized management capabilities through Cisco's suite of management tools. This allows operators to monitor performance, manage configurations, and troubleshoot issues more efficiently, reducing downtime and enhancing service reliability.

In summary, the Cisco uBR7246 is a powerful and flexible solution that meets the demands of modern broadband delivery. Its advanced technologies, modular design, high-level security features, and robust performance make it an ideal choice for cable operators aiming to provide high-quality services to their subscribers while staying ahead of the competition.