3Com 4500 PWR 26-Port Configuration Manual page 680

Opening an SSH connection with publickey
authenti cation
For putty, it is recommended to use PuTTY release 0.53; PuTTY release 0.58 is also supported.
For OpenSSH, it is recommended to use OpenSSH_3.1p1; OpenSSH_4.2p1 is also supported.
Any other version or other client, please be careful to use.
Selecting the protocol for remote connection as SSH. Usually, a client can use a variety of remote
connection protocols, such as Telnet, Rlogin, and SSH. To establish an SSH connecti
select SSH
Selecting the SSH version. Since the device supports only SSH2.0 now, select 2.0 for the client.
Specifying the private key file. On the server, if public key authentication is enabled for an SSH
user and a public key
specified on the client. RSA key pairs are generated by a tool of the client software.
The following takes the client software of PuTTY Version 0.58 as an example to illustrate how to
configure the SSH client:
Generating a client key
To generate a client key, run PuTTYGen.exe, and select from the P
want to generate, either SSH-2 RSA , then click Generate.
Figure 55-3 Generate a client key (1)
Task
is set for the user, the private key file corresponding to the public key must be
Remarks
Required for publickey authentication;
unnecessary for password authentication
arameters area the type of key you
on, you must