Enterasys Networks CSX6000 - Manual (Page 389)

C
ONFIGURING
O
THER
A
DVANCED
O
PTIONS
O VERVIEW
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
T HE D IGITAL M ODEM
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.
C ONFIGURING FOR A D IGITAL M ODEM
U SING 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