ZyXEL Communications NBG420N User Manual

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Chapter 6 Tutorials
NBG420N User’s Guide
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Select IP as the Local ID Type. This is the type of content that will be used to identify 
Jack’s NBG420N. Enter the IP address “2.2.2.2” in the Local Content text box. This 
identifies Jack’s NBG420N to Bob’s NBG420N.
Enter the IP address “1.1.1.1” in the Secure Gateway Address text box. This is Bob’s 
WAN IP address.
Select IP as the Peer ID Type. This is Bob’s Local ID Type. Enter “1.1.1.1” in the Peer 
Content text box. This is Bob’s Local Content WAN IP address.
Figure 54   Authentication Method
Select Tunnel as the Encapsulation Mode and ESP as the IPSec Protocol.
10 Enter “ThisIsMySecretKey” as the Pre-Shared Key. This is the password for the VPN 
tunnel that only Bob and Jack know.
11 Select 3DES as the encyption algorithm. Select the authentication algorithm as SHA1
These algorithms are more secure.
Figure 55   IPSec Algorithm
12 Click Apply to save the new rule and click VPN in the web configurator menu to return 
to the VPN Summary screen. The new VPN rule is displayed as shown below.
Figure 56   VPN Summary
6.2.3  Checking the VPN Connection
Check if the VPN connection is working by pinging the computer on the other side of the VPN 
connection. In the example below Bob is pinging Jack’s computer.