Specifying A Callback Telephone Number - Lucent Technologies PortMaster 4 Configuration Manual

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Configuring Login Users
Login Services
rlogin
telnet
netdata
To set the login service type for a login user, use the following command:
Command> set user Username service portmaster|rlogin|telnet|netdata [Tport]

Specifying a Callback Telephone Number

You can configure the login user for callback connections to enhance network security
or to simplify telephone charges. When a user logs in, the PortMaster disconnects the
user and then dials out to the telephone number specified for that user. The user is
reconnected to the host specified in the user table, via the same port on which the user
dialed in.
To enter the callback telephone number for a login user, use the following command:
Command> set user Username dialback String|none
To disable callback connections for the user, use the none keyword.
5-10
Function
The remote login service rlogin uses the rlogin protocol to
establish a login session to the specified host. Generally, rlogin is
used on mixed UNIX networks where the PortMaster login
service is impractical to use.
Telnet is supported on most TCP/IP hosts. This login service
should be selected when the PortMaster and rlogin protocols are
not available.
The default port number is 23, but you can enter another
number.
The netdata login service creates a virtual connection between
the PortMaster port and another serial port on another
PortMaster, or between the PortMaster port and a host. This
login service creates a clear-channel TCP connection. To connect
to another PortMaster port using netdata, you must configure
that port as /dev/network with the netdata device service and
the same TCP port number.
The default netdata port is 6000; however, you can specify any
TCP port number between 1 and 65535. This range allows
TCP/IP to be used with a hardwired connection using an RS232
cable. However, some serial communications protocols, such as
FAX, might have potential latency problems.
PortMaster 4 Configuration Guide

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