3Com 4200G Series, Руководство по началу работы

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52 C
HAPTER
3: S
ETTING
U
P FOR
M
ANAGEMENT
Setting Up
Command Line
Interface
Management using
SSH
To manage a switch using the command line interface over a network
with SSH:
1 Ensure that you have already set up the switch with IP information as
described in “Methods of Managing a Switch” on page 37.
2 Check that you have the IP protocol correctly installed on your
management workstation by trying to browse the World Wide Web. If
you can browse, the IP protocol is installed.
3 Check that you can communicate with the switch by entering a
ping
command at the DOS prompt in the following format:
c:\ ping xxx.xxx.xxx.xxx
(where xxx.xxx.xxx.xxx is the switch’s IP address)
If you receive an error message, check that your IP information was
entered correctly and the switch is powered up.
The switch automatically generates a host key pair when it is powered up
for the first time, or after it is reset to the factory defaults. Host key
generation may take a while, during which time SSH connections to the
switch are rejected.
4 Install an SSH client application on the workstation you want to use to
access the switch.
3Com recommends the PuTTY, OpenSSH, and SSH Communications
Security Corp Secure Shell SSH clients.
5 Open an SSH session and access the switch using the its IP address and
port number.
The first time you connect to the switch, the client prompts you to
confirm that the host key is correct for the device.
6 The switch and the SSH client authenticate each other and a secure
connection is established.
7 Enter your usual username and password to access the CLI commands.
For increased security change the default password when using SSH for
the first time.
10014914_AB_Switch 4200G.book Page 52 Tuesday, October 2, 2007 12:13 PM