ZyXEL Communications 100 Series User Manual

 Chapter 10 Interface

ZyWALL USG 100/200 Series User’s Guide

WEP provides a mechanism for encrypting data using encryption keys. Both the ZyWALL 
and the wireless stations must use the same WEP key to encrypt and decrypt data. Your 
ZyWALL allows you to configure up to four 64-bit or 128-bit WEP keys, but only one key can 
be used at any one time. 

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WEP is extremely insecure. Its encryption can be broken by an attacker, using 
widely-available software. It is strongly recommended that you use a more 
effective security mechanism. Use the strongest security mechanism that all 
the wireless devices in your network support. For example, use WPA-PSK or 
WPA2-PSK or WPA or WPA2 if your wireless devices support it. If your 
wireless devices support nothing stronger than WEP, use the highest 
encryption level available.

To configure and enable WEP encryption, click Network > Interface > WLAN > Add (or 
Edit) to open the WLAN Edit screen. Select WEP as the Security Type. The following 
screen shows the WEP security fields.

Priority

Enter the priority (between 0 and 255) of this interface when the area is looking 
for a Designated Router (DR) or Backup Designated Router (BDR). The highest-
priority interface identifies the DR, and the second-highest-priority interface 
identifies the BDR. Set the priority to zero if the interface can not be the DR or 
BDR.

Link Cost

Enter the cost (between 1 and 65,535) to route packets through this interface.

Passive 
Interface

Select this to stop forwarding OSPF routing information from the selected 
interface. As a result, this interface only receives routing information.

Authentication

Select an authentication method, or disable authentication. To exchange OSPF 
routing information with peer border routers, you must use the same 
authentication method that they use. Choices are:
Same-as-Area - use the default authentication method in the area
None - disable authentication
Text - authenticate OSPF routing information using a plain-text password
MD5 - authenticate OSPF routing information using MD5 encryption

Text 
Authentication 
Key

This field is available if the Authentication is Text. Type the password for text 
authentication. The key can consist of alphanumeric characters and the 
underscore, and it can be up to eight characters long.

MD5 
Authentication 
ID

This field is available if the Authentication is MD5. Type the ID for MD5 
authentication. The ID can be between 1 and 255.

MD5 
Authentication 
Key

This field is available if the Authentication is MD5. Type the password for MD5 
authentication. The password can consist of alphanumeric characters and the 
underscore, and it can be up to 16 characters long.

OK

Click OK to save your changes back to the ZyWALL.

Cancel

Click Cancel to exit this screen without saving.

Table 67   Network > Interface > WLAN > Add (No Security) (continued)