ZyXEL Communications NWA-3160 ユーザーズマニュアル

Chapter 15 Rogue AP Detection

NWA-3160 Series User’s Guide

In the example above, a corporate network’s security is compromised by a rogue 
AP (R) set up by an employee at his workstation in order to allow him to connect 
his notebook computer wirelessly (A). The company’s legitimate wireless network 
(the dashed ellipse B) is well-secured, but the rogue AP uses inferior security that 
is easily broken by an attacker (X) running readily available encryption-cracking 
software. In this example, the attacker now has access to the company network, 
including sensitive data stored on the file server (C).

• Use  the  Rogue AP > Configuration screen (see 

enable your NWA’s Rogue AP detection settings. You can choose to scan for 

rogue APs manually, or to have the NWA scan automatically at pre-defined 

intervals.

• Use  the    Rogue AP > Friendly AP screen (see 

) to 

specify APs as trusted.

• Use  the  Rogue AP > Rogue AP screen (see 

) to 

display details of all IEEE 802.11a/b/g/n wireless access points within the NWA’s 

coverage area, except for the NWA itself and the access points included in the 

friendly AP list.

The following terms and concepts may help as you read through this chapter.

You can configure the NWA to detect rogue IEEE 802.11a/n (5 GHz) and IEEE 
802.11b/g (2.4 GHz) APs. 

You can also set the NWA to e-mail you immediately when a rogue AP is detected 
(see 

 for information on how to set up e-mail logs).

You can set how often you want the NWA to scan for rogue APs in the ROGUE AP 
> Configuration screen (see 

).

If you have more than one AP in your wireless network, you can configure a list of 
“friendly” APs. Friendly APs are other wireless access points, aside from the NWA, 
that are detected in your network, as well as any others that you know are not a 
threat (those from neighboring networks, for example). It is recommended that 
you export (save) your list of friendly APs often, especially if you have a network 
with a large number of access points. If you do not add them to the friendly AP 
list, these access points will appear in the Rogue AP list each time the NWA 
scans.