ZyXEL Communications X2002, User Manual

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Chapter 32 Remote Management
X2002 User’s Guide
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SSH
You can use SSH (Secure SHell) to securely access the X2002’s command line
interface. Specify which interfaces and from which IP address(es) users are
allowed to access the device through SSH.
Unlike FTP, which transmit data in plaintext (clear or unencrypted text), SSH is a
secure communication protocol that combines authentication and data encryption
to provide secure encrypted communication between two hosts over an unsecured
network.
SSH Implementation on the X2002
Your X2002 supports SSH version 1.5 using RSA authentication and three
encryption methods (DES, 3DES and Blowfish). The SSH server is implemented on
the X2002 for remote SMT management and file transfer on port 22. Multiple SSH
connections are allowed at a time.
Requirements for Using SSH
You must install an SSH client program on a client computer (Windows or Linux
operating system) that is used to connect to the X2002 over SSH.
ICMP
Internet Control Message Protocol is a message control and error-reporting
protocol between a host server and a gateway to the Internet. ICMP uses Internet
Protocol (IP) datagrams, but the messages are processed by the TCP/IP software
and are directly apparent to the application user.
32.2 The WWW Screen
Use this screen to configure trusted computers which is allowed to access your
X2002’s World Wide Web. Click
Maintenance > Administration > Remote
Management to display the WWW screen.
Figure 253 Remote Management > WWW