If someone generates hard network traffic, this value will be high so you can detect it easily.
Example: 433 Mpbs.ĪP latency: This is the latency time of your access point (router) in ms. In a wireless network, the link speed is always higher than the real achievable speed. The current value of link speed depends on the distance from the AP, the signal strength, supported protocols by the AP and your mobile. Link speed: This is the theoretical data rate. Possible WDS (expanded) network: In WiFi Network Analyzer app, this message shows that it found a network that seems to be an expanded network of the connected network. Using WDS you can extend the range of your wireless network. WDS (expanded) network: WDS allows a wireless network to be expanded using multiple access points without the traditional requirement for a wired backbone to link them. Possible guest network: in WiFi Network Analyzer app, this message shows that it found a network that seems to be a guest network of the connected network.
The AP has dual SSIDs, dual security and the guest network is isolated from other networks. Guest network: Sharing your wifi with “guests”. In the 2.4 GHz band, 1, 6 and 11 are the only non-overlapping channels. Overlapping channel: the networks operate on close channels can cause interference on each other network.
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The most common is the 2.4 GHz (2412-2484 MHz), or the 5 GHz (4980-5825 MHz).Ĭhannel: Each frequency range is sub-divided into channels with a center frequency and bandwidth, analogous to the way radio and TV broadcast bands are sub-divided. Example: 192.168.0.1įrequency: All wifi networks operate on a special frequency. IP address: An Internet Protocol address (IP address) is a numerical label assigned to each device (e.g., computer, mobile phones) participating in a computer network that uses the Internet Protocol for communication. There can be several APs on the same network (same SSID) with different BSSIDs. MAC address: A media access control address (MAC address), also called physical address, is a unique identifier assigned to network interfaces for communications on the physical network segment. For example, it can be open (anybody can attach) or encrypted (with different encryption strength like WEP, WPA, WPA2) or even authenticated (username:password). A device that allows wireless devices to connect to a wired network using Wi-Fi, or related standards.ĪP capabilities: This is the security level of the AP. Example: my-networkĪccess point(AP): Generally, this is your router. SSID is a case sensitive, max 32 alphanumeric character unique identifier.
SSID: This is the name of a wireless network.
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(See the pcap-filter man page or, if you don't have a pcap-filter man page, the tcpdump man page for details.WiFi Analyzer and WiFi Analyzer Pro documentation
If you care about the access point address, rather than the station address, you'll need to use filters such as wlan ra XX:XX:XX:XX:XX:XX or wlan ta XX:XX:XX:XX:XX:XX, at least with newer versions of libpcap. If you want to search for packets being sent to a particular MAC address, you can just use wlan dst XX:XX:XX:XX:XX:XX if you want to search for packets being sent from a particular MAC address, you can just use wlan src XX:XX:XX:XX:XX:XX if you want to search for packets being sent to or from a particular MAC address, you can just use wlan host XX:XX:XX:XX:XX:XX. So just pass 0 as the "net" argument to pcap_compile(). If the netmask of the network on which packets are being captured isn't known to the program, or if packets are being captured on the Linux "any" pseudo-interface that can capture on more than one network, a value of 0 can be supplied tests for IPv4 broadcast addreses won't be done correctly, but all other tests in the filter program will be OK. The only place where the IP address matters is for ip broadcast filter expressions if you're not filtering for IPv4 broadcast addresses, which you probably won't be, there's no need to get the IPv4 address. What airmon-ng did was to create a "monitor" interface for the Wi-Fi adapter the regular network interface for the adapter might have an IP address assigned to it, but the monitor interface won't have one. All it means is that the network interface on which you're trying to capture does not have an IPv4 address assigned to it. "no IPV4 address assigned" is an error from pcap_lookupnet().