ZyXEL Communications NWA3000-N User Manual

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Chapter 15 System
NWA3000-N Series User’s Guide
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to securely connect to the WAN port of the NWA3000-N series AP (A) for a 
management session.
Figure 94   SSH Communication Over the WAN Example
15.6.1  How SSH Works
The following figure is an example of how a secure connection is established 
between two remote hosts using SSH v1.
Figure 95   How SSH v1 Works Example
1
Host Identification
The SSH client sends a connection request to the SSH server. The server 
identifies itself with a host key. The client encrypts a randomly generated 
session key with the host key and server key and sends the result back to the 
server.
The client automatically saves any new server public keys. In subsequent 
connections, the server public key is checked against the saved version on the 
client computer.