Enterasys Networks CSX7000 Configuring Other Advanced Options, Digital Modem, For IP routing

CONFIGURING OTHER ADVANCED OPTIONS

OVERVIEW

This chapter provides information for configuring advanced system options that are not covered in the previous chapters. These options include:

•configuring for a Digital Modem

•configuring default async protocol

•configuring PPP

•configuring default line protocol

•configuring log options

•configuring system compression options

•configuring TFTP

•configuring file attributes

THE DIGITAL MODEM

In addition to ISDN support, the CyberSWITCH becomes an analog modem pool through its Digital Modem feature. The Digital Modem feature consists of both hardware and software elements to support up to 30 K56Flex modems (handling 300 bps to 56 Kbps) on a single adapter. This adapter is connected to an ISDN BRI or PRI adapter via an intercard bus. This Digital Modem adapter performs the modulation or demodulation and Async-Sync conversions, as necessary. The system then sends the data to the LAN.

The Digital Modem feature allows the system to accommodate both incoming and outgoing analog calls (i.e., it can receive and initiate connections). The feature conforms to the V.90 standard (which supports K56Flex), and will support connections from remote modems that also conform to this same standard.

CONFIGURING FOR A DIGITAL MODEM

USING CFGEDIT

1.Configure basic system configuration, including the configuration of resources and lines (See Configuring Resources). Note that when you configure the Digital Modem resource, you must specify whether the resource is a DM-8, DM-24, or a DM-30. You do not need to distinguish between V.34+ and K56Flex modems; the CyberSWITCH will do this internally.

2.Select and configure protocol. The digital modem may use:

•IP Routing

•IPX Routing

•AppleTalk

For IP routing:

a.Make sure IP routing is enabled.

b.Configure the LAN interface to represent local IP Network that may receive and send datagrams (refer to the Configuring Interfaces in the Configuring Basic IP Routing chapter).

c.Configure the WAN or WAN Direct Host interface to represent remote networks that may receive and/or initiate calls (refer to the Configuring Interfaces in the Configuring Basic IP