Telnet Configuration with Authentication Mode Being Scheme
51
Figure 15
Launch Telnet
5
If the password authentication mode is specified, enter the password when the
Telnet window displays "Login authentication" and prompts for login password.
The CLI prompt (such as <4210>) appears if the password is correct. If all VTY user
interfaces of the switch are in use, you will fail to establish the connection and
receive the message that says "All user interfaces are used, please try later!". A
3Com series Ethernet switch can accommodate up to five Telnet connections at
same time.
6
After successfully Telnetting to the switch, you can configure the switch or display
the information about the switch by executing corresponding commands. You can
also type ? at any time for help.
n
■
A Telnet connection is terminated if you delete or modify the IP address of the
VLAN interface in the Telnet session.
■
By default, commands of level 0 are available to Telnet users authenticated by
password. Refer to “Command Hierarchy” on page 11 and “CLI Views” on
page 14 for information about command hierarchy.
Telnetting to another Switch from the Current Switch
You can Telnet to another switch from the current switch. In this case, the current
switch operates as the client, and the other operates as the server. If the
interconnected Ethernet ports of the two switches are in the same LAN segment,
make sure the IP addresses of the two management VLAN interfaces to which the
two Ethernet ports belong to are of the same network segment, or the route
between the two VLAN interfaces is available.
As shown in Figure 16, after Telnetting to a switch (labeled as Telnet client), you
can Telnet to another switch (labeled as Telnet server) by executing the
telnet
command and then configure it.
Figure 16
Network diagram for Telnetting to another switch from the current switch
1
Perform Telnet-related configuration on the switch operating as the Telnet server
using the instructions earlier in this chapter.
2
Telnet to the switch operating as the Telnet client.
3
Execute the following command on the switch operating as the Telnet client:
<4210> telnet xxxx
PC
Telnet Client
Telnet Server
Summary of Contents for Switch 4210 9-Port
Page 22: ...20 CHAPTER 1 CLI CONFIGURATION ...
Page 74: ...72 CHAPTER 3 CONFIGURATION FILE MANAGEMENT ...
Page 84: ...82 CHAPTER 5 VLAN CONFIGURATION ...
Page 96: ...94 CHAPTER 8 IP PERFORMANCE CONFIGURATION ...
Page 108: ...106 CHAPTER 9 PORT BASIC CONFIGURATION ...
Page 122: ...120 CHAPTER 11 PORT ISOLATION CONFIGURATION ...
Page 140: ...138 CHAPTER 13 MAC ADDRESS TABLE MANAGEMENT ...
Page 234: ...232 CHAPTER 17 802 1X CONFIGURATION ...
Page 246: ...244 CHAPTER 20 AAA OVERVIEW ...
Page 270: ...268 CHAPTER 21 AAA CONFIGURATION ...
Page 292: ...290 CHAPTER 26 DHCP BOOTP CLIENT CONFIGURATION ...
Page 318: ...316 CHAPTER 29 MIRRORING CONFIGURATION ...
Page 340: ...338 CHAPTER 30 CLUSTER ...
Page 362: ...360 CHAPTER 33 SNMP CONFIGURATION ...
Page 368: ...366 CHAPTER 34 RMON CONFIGURATION ...
Page 450: ...448 CHAPTER 39 TFTP CONFIGURATION ...
Page 451: ......
Page 452: ...450 CHAPTER 39 TFTP CONFIGURATION ...
Page 470: ...468 CHAPTER 40 INFORMATION CENTER ...
Page 496: ...494 CHAPTER 44 DEVICE MANAGEMENT ...