Chapter 43. Using the V.34 Network Interface
The V.34interface allows routers to establish serial connections over switched
telephone lines using externally attached modems that support the standard AT
command set or integrated modem adapters. This chapter describes how to use a
V.34interface. It includes the following sections:
v“Before YouBegin”
v“Configuration Procedures”
Note: Youcan assign a destination name to a connection list and assign a
destination number to each line in the list. When that destination name is
called, the numbers in the list are tried one by one until a connection is
made or the list is exhausted.
Before You Begin
If you are using externally attached modems, make sure that you have
asynchronous modems that support the Hayes ATcommand set. Also, you must
know the maximum DTE speed of each modem.
Configuration Procedures
This section describes how to configure your router for V.34.The tasks you need to
perform are:
1. Adding V.34addresses
2. Configuring V.34parameters
3. Adding dial circuits
4. Configuring dial circuits
Note: Youmust restart the router for changes to the V.34 configuration to take
effect.

Adding V.34 Addresses

A default V.34address is created when V.34 interfaces are initially configured
(called “default_address”). Dial circuits configured on the V.34interface default to
the same address allowing some dial-in applications to work without modification of
the V.34address.
Youneed to add a V.34 address (or modify the default_address) if you plan to use
dial-out applications. The V.34address includes:
v

Address Name.

The address name is a description of the address. Youcan use
any string of up to 23 printable ASCII characters.
v

Network Dial Address.

Telephonenumber of the local or destination port. You can
enter up to 31 characters that are in the valid dial characters for the connected
modem.
Note: The valid character set for telephone numbers as defined by the CCITT
and supported by the IBM 2210 includes:
The decimal digits 0 through 9
© Copyright IBM Corp. 1994, 1998 595