Chapter 4: Software
Multi-Tech Systems, Inc. MultiAccess ACS User Guide
24
Modem Setup
The Modem Setup screen defines the Modem Sharing behavior and general modem parameters, Country
Code and number of rings before auto answer.
Prior to software release 1.03, the ports were configured for either RAS or modem sharing, for which they
were then dedicated to just that role. Now, with software release 1.03, the ports can be configured for
both roles, alleviating the need for administrator intervention when either role is desired.
The TCP port number to access the modem is 7000. The Modem Sharing method can be with or without
an authentication process. Modem Sharing with authentication means a login prompt will be issued into
the socket, to the user, when it is opened. Who, what, opens the socket must provide the appropriate
credentials before access is given to the modem. The data base of user’s names and passwords the
MultiAccess will check against can be one of two choices. A local data base, defined within the
MultiAccess, or a Radius data base, defined in a Radius server, external to the MultiAccess.
The type of Telnet connection, mode, can be “Raw” or not Raw. A Raw Telnet connection is one that
does not respond to or use Telnet and RFC 2217 escape sequences, flags. When Raw is not used,
packets of FF will not be interpreted as escape flags. The excape routine includes a process of removing
and replacing escape flags and subsequent characters normally intended for command and control
function between Telnet hosts, RFC 2217 com port control via Telnet.
Modem Setup Screen Field Definitions
Field Name
Values
Description
Modem Sharing
Modem Sharing with
no, local, or radius
Authentication,and
Modem Sharing- Raw
Mode with no, local or
radius Authentication
The type of PPP session is standard PAP authentication
with IP as the network protocol.
No Authentication – Immediate access is granted to the
modem.
Local Authentication – A valid set of credentials, defined
in the Local User data base, is required before access is
granted.
Radius Authentication – A valid set of credentials,
defined in the Radius User data base, is required before
access is granted.
Raw is the type of telnet socket used to access the
shared modem.
Country Code
Alphabetical
The Country Code configures the modem for the country
that it is operating in.
Answer On
Numeric
The number of rings before the maodem answers is
defaulted to two rings. You can change the number of
rings from zero to 255 rings.
Update (button)
Click this button to update the configuration.
