ZyXEL Communications 402 User Manual

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 Chapter 1 Introducing the PLA-4xx
PLA-4xx Series User’s Guide
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1.4.1  Passwords
You use two types of passwords in the HomePlug AV powerline network. The following table 
describes the differences between the passwords.
1.4.2  Setting Up Security
Use the PLA-4xx Series Configuration Utility to set up security on the PLA-4xx or other 
HomePlug AV compliant powerline adapters. Although the PLA-4xx is a “plug-and-play” 
network expanding solution there are several reasons for enabling security on the powerline 
network in your home.
It’s easy and only requires you to change a password.
It’s a good idea to ensure privacy of your communication. When you use the PLA-4xx 
and other powerline adapters, the electrical wiring in your home becomes an extension 
of your Ethernet network. Your network traffic flows freely within the electrical circuit 
of your home and is bounded in most cases by a power meter. 
Without security (encryption) your information is accessible to anyone using a 
powerline adapter on the same electrical circuit. In some cases, a circuit can be shared by 
more than one household.
To prevent compromising your network security, you can create a private network. A 
private network uses a secret password to make sure that only permitted powerline 
adapters can communicate in your network. See 
 for 
information on setting up a private network.
"
Buildings and even streets may share a coaxial cable connection. If your 
powerline network uses a coaxial cable, the network will probably extend 
outside your premises. In this case make your network more secure with a 
private network password.
You may need to change the password to create multiple powerline networks. See the 
next section for more information on how to set up a multiple network.
Table 1   Password Summary
PASSWORD
DESCRIPTION
Private Network 
Password
All powerline adapters that follow the HomePlug AV standard are 
shipped with the same powerline network password “HomePlugAV”. 
Change this password via the PLA-4xx Series Configuration 
Utility to create a private network. Se
DAK (Data Access 
Key) Password
In order to manage the powerline adapters on your powerline 
network you must enter the adapters’ DAK password in the PLA-4xx 
Series Configuration Utility. This password is printed on the 
powerline adapter itself. 
You don’t need to add the password for the powerline adapter 
directly connected to the computer running the configuration utility 
(local powerline adapter), you only have to add the remote powerline 
adapters’ passwords (those on your circuit, but not directly 
connected to your computer).