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Chapter 10 Interface
ZyWALL USG 100/200 Series User’s Guide
241
10.9.2 WLAN Add/Edit Screen: WEP Security
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.
" 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)
LABEL DESCRIPTION