5. Configuring the FrameSaver DSL Router

IP Routing

The router uses destination-based routing. IP routing tables are maintained for both the customer data and management data domains to specify how IP datagrams are forwarded. The router can support up to 32 entries in the data IP routing table, and up to 300 entries for the management IP routing table. When an IP address and subnet mask are assigned to an interface, an entry is automatically created in the IP routing table.

Address Resolution Protocol

The router supports Address Resolution Protocol (ARP), as specified in RFC 826. The router provides for 256 ARP table entries. The timeout for completed and uncompleted ARP table entries is configurable.

The Command Line Interface provides the ability to:

Create up to 64 static ARP table entries to be retained across power cycles.

Display the ARP table.

Delete ARP table entries.

￿Display and delete automatically added static ARP table entries by the DHCP server and relay functions. Refer to Dynamic Host Configuration Protocol Server on page 5-11.

Proxy ARP

The router supports Proxy ARP. Proxy ARP responses are based on the contents of the IP routing table for management traffic. The IP routing table for management traffic must have an entry for every host that is reachable on the Ethernet interface, including hosts for which the router will not forward packets because of IP filters.

For additional information on filtering, refer to IP Filtering on page 5-16.

If an ARP request is received on one interface for an IP address that is reachable on the other interface, the router will respond with its own MAC address. Proxy ARP is enabled via the user interface. Refer to Configuring Ethernet Management in Chapter 4, Configuration Options.

NOTES:

—When Basic NAT is enabled, the DSL interface must have Proxy ARP enabled if the interface address is part of the Basic NAT global IP network address.

—Proxy ARP and NAPT cannot be enabled at the same time.

9700-A2-GB20-20

December 2002

5-3

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Paradyne 9720, 9788 manual IP Routing, Address Resolution Protocol, Proxy ARP
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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.
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