13 - 118 WiNG 5.6 Access Point System Reference Guide
13.3.23.2 Denial of Service
Firewall
A denial-of-service attack (DoS attack) or distributed denial-of-service attack is an attempt to make a computer resource
unavailable to its intended users. Although the means to carry out a DoS attack may vary, it generally consists of concerted
efforts to prevent an Internet site or service from functioning efficiently.
One common method involves saturating the target’s machine with external communications requests, so it cannot respond to
legitimate traffic or responds so slowly as to be rendered effectively unavailable. DoS attacks are implemented by either
forcing the targeted computer(s) to reset, or consume its resources so it can’t provide its intended service.
The DoS screen displays the types of attack, number of times it occurred and the time of last occurrence.
To view access point DoS attack information:
1. Select the Statistics menu from the Web UI.
2. Select System from the navigation pane (on the left-hand side of the screen). Expand a RF Domain and select one of its
connected access points.
3. Select Firewall and expand the menu to reveal its sub menu items.
4. Select Denial of Service.
Figure 13-77 Access Point - Firewall Denial of Service screen
The Denial of Service screen displays the following:
Attack Type Displays the Denial of Service (DoS) attack type.
Count Displays the number of times the access point’s firewall has detected each listed DoS attack.
Last Occurrence Displays the when the attack event was last detected by the access point firewall.
Clear All Select the Clear All button to clear the screen of its current status and begin a new data
collection.
Refresh Select the Refresh button to update the screen’s statistics counters to their latest values.
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