3com DUA1750-2BAA01 Manual De Usuario

3Com Switch 8800 Configuration Guide 

Chapter 50  SSH Terminal Service

 

50-1 

This chapter introduces the secure shell (SSH) feature. When a user telnets to the 

switch from an insecure network, the SSH feature can provide secure information and 

powerful authentication functionality, thereby protecting the switch from attacks such as 

IP address spoofing and clear text password interception attacks. 

The switch can act as either SSH server or SSH client. When used as an SSH server, 

the switch supports multiple connections with SSH clients; when used as an SSH client, 

the switch supports SSH connections with the SSH server-enabled switch, UNIX hosts, 

and so on. 

Currently, the switch supports SSH 2.0. 

Figure 50-1 and Figure 50-2 illustrate two methods for establishing an SSH channel 

between a client and the server: 

z 

Connect through a LAN 

z 

Connect through a WAN 

100BASE -TX

Server

SSH client

Ethernet

Workstation

Laptop

SSH server

100BASE -TX

Server

PC

SSH

Ethernet

Workstation

Laptop

Switch

SSH

 

Figure 50-1 Establish an SSH channel through a LAN