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Quidway NetEngine80
Configuration Guide - Basic Configurations
9 Telnet and SSH
Issue 04 (2009-12-20)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
9-3
Figure 9-2
Telnet redirection services
PC
Ethernet
Router
Async0
Async1
Async2
Async8/16
Router2
Modem
Lan Switch
Router1
Only the devices that provide the asynchronous interface support the Telnet redirection service.
z
Interruption of Telnet services
In Telnet connection, you can use two types of shortcut keys to interrupt the connection.
As shown in
Figure 9-2
, Router A logs in to Router B through Telnet, and Router B logs
in to Router C through Telnet. Thus, a cascade network is formed. In this case, Router A
is the client of Router B and Router B is the client of Router C.
Figure 9-3
illustrates the
usage of the two types of shortcut keys.
Figure 9-3
Usage of Telnet shortcut keys
RouterA
RouterB
Telnet Server
Telnet Session 1
Telnet Session 2
RouterC
Telnet Client
Ctrl_]: The server interrupts the connection.
If the network connection is normal, when you press
Ctrl
+
]
, the
Telnet server interrupts the
current Telnet connection actively. For example:
<RouterC> (Press <Ctrl_]> to return to the prompt of RouterB.
Note: The max number of VTY users is 5, and the current number
of VTY users on line is 0.
The connection was closed by the remote host!
<RouterB> (Press <Ctrl_]> to return to the prompt of RouterA.)
Note: The max number of VTY users is 5, and the current number
of VTY users on line is 0.
The connection was closed by the remote host!
<RouterA>