Telnet - ZyXEL Communications ZYWALL USG 20 Manual

Chapter 43 System
Enter the password to log in to the ZyWALL. The CLI screen displays next.
43.8.5.2 Example 2: Linux
This section describes how to access the ZyWALL using the OpenSSH client
program that comes with most Linux distributions.
Test whether the SSH service is available on the ZyWALL.
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Enter "telnet 192.168.1.1 22" at a terminal prompt and press [ENTER]. The
computer attempts to connect to port 22 on the ZyWALL (using the default IP
address of 192.168.1.1).
A message displays indicating the SSH protocol version supported by the
ZyWALL.
Figure 402 SSH Example 2: Test

$ telnet 192.168.1.1 22

Trying 192.168.1.1...
Connected to 192.168.1.1.
Escape character is '^]'.
SSH-1.5-1.0.0
Enter "ssh –1 192.168.1.1". This command forces your computer to connect to
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the ZyWALL using SSH version 1. If this is the first time you are connecting to the
ZyWALL using SSH, a message displays prompting you to save the host
information of the ZyWALL. Type "yes" and press [ENTER].
Then enter the password to log in to the ZyWALL.
Figure 403 SSH Example 2: Log in
$ ssh –1 192.168.1.1
The authenticity of host '192.168.1.1 (192.168.1.1)' can't be established.
RSA1 key fingerprint is 21:6c:07:25:7e:f4:75:80:ec:af:bd:d4:3d:80:53:d1.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added '192.168.1.1' (RSA1) to the list of known hosts.
Administrator@192.168.1.1's password:
The CLI screen displays next.
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43.9 Telnet
You can use Telnet to access the ZyWALL's command line interface. Specify which
zones allow Telnet access and from which IP address the access can come.
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ZyWALL USG 20/20W User's Guide