5. Configuring the FrameSaver DSL Router

IP Filtering

For more information about IP filtering, see the Hotwire MVL, ReachDSL, RADSL, IDSL, and SDSL Cards, Models 8310, 8312/8314, 8510/8373/8374, 8303/8304, and 8343/8344, User’s Guide.

With NAT – When NAT is enabled and the IP filters are active, filtering is done on the Ethernet port – upstream first, then downstream.

Upstream: From the client to the server

￿Downstream: From the server to the client

Filtering with NAT

DSL

Public

Network

NAT

NAT

DSL/

Rx Filter

DSL/

Tx Filter

IP

IP

Ethernet/

Tx Filter

Ethernet/ Rx Filter

Ethernet

Private

Network

00-16905

Filtering without NAT

DSL

Public

Network

DSL/

Rx Filter

DSL/

Tx Filter

IP

IP

Ethernet/

Tx Filter

Ethernet/ Rx Filter

Ethernet

Private

Network

00-16904

Land Bug Prevention

The router drops all packets received on a network PVC interface or the Ethernet interface when the Source IP address is the same as the Destination IP address.

Smurf Attack Prevention

The router ignores requests to send an ICMP echo reply to the broadcast address and ICMP echo requests with a destination of the broadcast address.

5-16

December 2002

9700-A2-GB20-20

Page 119 Page 121
Page 120
Image 120
Paradyne 9788, 9720 manual IP Filtering, Land Bug Prevention, Smurf Attack Prevention, Nat Dsl
Page 119 Page 121

9720, 9788 specifications

The Paradyne 9820-8M, 9788, 9128 standalone, 9128 carrier-mount, and 9820-2M are critical components in telecommunications networks, designed to enhance data transmission and improve connectivity. Each model offers unique features and capabilities that cater to various requirements in both enterprise and service provider environments.

The Paradyne 9820-8M is a multi-service access platform that provides high-speed connectivity for voice, video, and data transmission. It supports multiple protocols, enabling seamless integration into existing infrastructures. Key features include a modular design that allows for scalability and easy upgrades, ensuring that organizations can adapt to evolving demands. Its advanced error correction and QoS (Quality of Service) features ensure reliable performance, even in challenging network conditions.

The Paradyne 9788 serves as a versatile platform for both digital and analog communications. It excels in the delivery of broadband services, supporting T1/E1 lines and providing robust mechanisms for data transmission. This model emphasizes redundancy and resilience, with built-in protection switching capabilities that maintain service continuity during faults or maintenance activities. Its compact design makes it an ideal solution for environments with space constraints.

The 9128 standalone model is aimed at customers requiring an easy-to-deploy solution for point-to-point connections. This model offers critical features such as an intuitive user interface, comprehensive diagnostics, and monitoring capabilities that facilitate system management. It also supports diverse network topologies, making it suitable for various deployment scenarios.

In contrast, the 9128 carrier-mount version is engineered for organizations needing to manage multiple connections within a central office or remote site. This model is specifically designed to be mounted in standard telecom racks, optimizing space utilization while maintaining high performance. Its robust hardware allows for excellent thermal management and environmental resilience.

Lastly, the Paradyne 9820-2M combines versatility with high-performance capabilities, making it a reliable choice for service providers. It features dual-channel support, enabling simultaneous transmission and providing a cost-effective solution for high-capacity data needs. With enhanced security features, including encryption capabilities, the 9820-2M ensures that sensitive information transmitted across networks is protected against unauthorized access.

Collectively, these Paradyne models exemplify advanced telecommunications technology, offering scalability, resilience, and high performance. Their diverse features cater to the unique demands of various users, from enterprise networks to service providers, facilitating the continual evolution of communication technologies.
Top Page Image Contents