Technical Reference - ZyXEL Communications USG40 User Manual

Zywall/usg series

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Table 300 Configuration > Object > MON Profile > Add/Edit MON Profile (continued)

Set Scan Channel

List (5 GHz)

42.4.3 Technical Reference

The following section contains additional technical information about the features described in this

Rogue APs are wireless access points operating in a network's coverage area that are not under the

control of the network's administrators, and can open up holes in a network's security. Attackers

can take advantage of a rogue AP's weaker (or non-existent) security to gain access to the network,

or set up their own rogue APs in order to capture information from wireless clients. If a scan reveals

a rogue AP, you can use commercially-available software to physically locate it.

Figure 516 Rogue AP Example

In the example above, a corporate network's security is compromised by a rogue AP (RG) 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).

Move a channel from the Available channels column to the Channels selected

column to have the APs using this profile scan that channel when Scan Channel Mode

is set to manual.

These channels are limited to the 5 GHz range (802.11 a/n).

Click OK to save your changes back to the ZyWALL/USG.

Click Cancel to exit this screen without saving your changes.

ZyWALL/USG Series User's Guide

Chapter 42 Object

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