3Com 3C13636 Configuration Manual page 205

3Com Router 3000 Ethernet Family
Configuration Guide
Disable Telnet option negotiation during
setup of redirected Telnet connection
Enable Telnet option negotiation during
setup of redirected Telnet connection
By default, a Telnet connection can be idle for 360 seconds before it times out, carriage
returns are not touched, and Telnet option negotiation is enabled.
V. Disconnecting the redirected Telnet connection
Perform the following configuration in user interface view.
Table 11-11 Disconnect the redirected Telnet connection
Disconnect
connection.
Terminate the redirected connection by pressing <Ctrl+]>.
Note:
The interfaces of devices connected with the asynchronous interface of the router
must also work in async flow mode.
Telnet port number in establishing the redirect connection is numbered as follows:
Telnet port number is equal to TTY number plus 2000. Various user interfaces and
their numbers can be displayed using the display user-interface command.
Moreover, TTY user interface number is one-to-one with each async interface of the
router. See the section "Numbering User Interfaces".
# Communicate with the external device on the seventh async serial interface of the
router (IP address of the router is 10.110.164.44, and assume that the router and its
external device have been configured).
<3Com> telnet 10.110.164.44 2007
Trying
Connected to 10.110.164.44
After establishing Telnet redirect connection, you can send commands to communicate
with the connected device on the asynchronous interface. If the connected one is a
modem, you can detect its status or configure it by using the AT command.
For example:
Operation
Operation
the redirected
10.110.164.44 ...
3Com Corporation
redirect refuse-negotiation
undo redirect refuse-negotiation
Telnet
redirect disconnect
11-8
Chapter 11 Terminal Services
Command
Command