You can configure a Cisco access server
to allow a PPP, SLIP, or AppleTalk Remote Access Protocol (ARAP)
session to start automatically or to provide the router user prompt
to your callers, as shown in Figure .
This autosensing feature can be
accomplished by using the autoselect
command issued in the line configuration mode:
Router(config)#line line-number
Router(config-line)#autoselect {arap |
ppp | slip | during-login}
The autoselect
command permits the access server to allow an appropriate process to
start automatically when a starting character is received. The
access server detects either a return character, which is the start
character for an EXEC session, or the start character for one of the
three protocols specified (ARAP, PPP, or SLIP). For example, PPP
frames always start with a flag character having the value 7E in
hexadecimal (or 01111110 in binary) format.
The during-login option of the
autoselect
command
causes the username or password prompt to display without the
need to press the Return key. This option is configured in the
remote Windows 95 PC modem configuration by enabling a terminal
window to be brought up after dialing. Autoselect starts when the
line is active, but the system provides a username and password
prompt. Figure
shows
a caller's session on an access server configured with the autoselect
during-login command.
no exec Command
If you don’t want users to be presented with a user
prompt, type no exec
at the line configuration mode.
This command determines whether or not the terminal server
starts an EXEC process on the line. By default, the terminal
server starts EXECs on all lines. When a user tries to
Telnet to a line with the no exec
command configured,
the user gets no response when pressing the Return key at
the login screen.
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