detect rogue devices on network

Use QT Qtcpsocket to detect the network status of your device:The function returns TRUE, device network status is normal, return false, device network exception.BOOL Tcpipsocket::sendatcpsockettoip (QString IP) {m_ipadress = IP;Abort ();Connecttohost (m_ipadress, Port); Wait timeout time, if still not pass, then except

addresses. Although such scanning may be too time-consuming and may cause errors. This method is often used to scan the MAC addresses registered to devices such as D-Link. However, this method may not be effective because many large companies have acquired small vendors. For example, because Cisco acquired Linksys, the MAC address is displayed as Cisco. If you have a list of well-known MAC addresses in your organization, you can scan any device that

detection domain. The conflict detection domain is an Ethernet segment that is logically or physically divided. Within a single segment, all devices detect and handle data transfer conflicts. This potential conflict is limited because the switch has a limited number of devices that can accommodate a collision detection domain. The original switch was used to rep

regularly. A workflow should be established to determine how long the collected log data will be checked and analyzed. Regular analysis of the massive log data collected by various applications and devices throughout the network helps identify and diagnose faults, and may detect ongoing attacks. 2. view log information with an open eye The common error in log da

national Information Security Vulnerability Library ( CNNVD ) 650) this.width=650; "Src=" http://img.blog.csdn.net/20161028160607423?watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQv/ Font/5a6l5l2t/fontsize/400/fill/i0jbqkfcma==/dissolve/70/gravity/center "style=" BORDER:NONE;LINE-HEIGHT:25.6PX; Text-align:center; "/> Internet of things devices as a gateway to information security attacksIn the cyber attack on Dyn, two Internet providers in

at each layer need to complete different tasks according to the characteristics of different layers. Next we will discuss the working principles of common network interconnection devices and their respective characteristics when dividing conflicting domains and broadcast domains. 1. Traditional Ethernet operations A typical example of conventional shared Ethernet is bus-type Ethernet. In this type of Ether