This would appear to a wardriver as though there were hundreds of APs in the area, thus concealing the real AP. Detecting an AP Flood Attackįake AP is a tool that was originally created to thwart wardrivers by flooding beacon frames containing hundreds of different addresses. If a client connects to a malicious ad hoc network, security breaches or attacks can occur. If an unauthorized ad hoc network is using the same SSID as an authorized network, a valid client may be tricked into connecting to the wrong network. Detecting an Ad hoc Network Using a Valid SSID For these reasons, many administrators choose to prohibit ad-hoc networks. Additionally, ad-hoc networks can expose client devices to viruses and other security vulnerabilities. If a device is connected to a wired network and has bridging enabled, an ad-hoc network may also function like a rogue AP. If they do not use encryption, they may expose sensitive data to outside eavesdroppers. As far as network administrators are concerned, ad hoc wireless networks are uncontrolled. Detecting Ad hoc NetworksĪn ad hoc network is a collection of wireless clients that form a network amongst themselves without the use of an AP. Not only can they not communicate with legacy devices, the way they use the transmission medium is different, which would cause collisions, errors and retransmissions.
When 802.11 devices use the HT operating mode, they can not share the same channel as 802.11a/b/g stations. Network administrators often want to know if there are devices that are advertising 40MHz intolerance, as this can impact the performance of the network.
When a client sets the HT capability “ intolerant bit” to indicate that it is unable to participate in a 40MHz BSS, the AP must use lower data rates with all of its clients. Table 1 presents a summary of the Intrusion infrastructure detection features with their related commands, traps, and syslog identification. ArubaOS automatically learns authorized Aruba APs. The AP is either a n Aruba AP or a third party AP. An authorized or valid-AP is defined as an AP that belongs to the WLAN infrastructure. This group of features detects attacks against the WLAN infrastructure, which consists of authorized APs, the RF medium, and the wired network. Understanding Infrastructure Intrusion Detectionĭetecting attacks against the infrastructure is critical in avoiding attacks that may lead to a large-scale Denial of Service (DOS) attack or a security breach. This section covers Infrastructure and Client Intrusion Detections. Working with Intrusion Detection Working with Intrusion Detection
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