![]() ![]() Its very interesting to know that Wireshark itself is not able to capture the traffic its just a analysing tools where we see graphical representation of all the captured traffic. In order to capture the traffic Wireshark calls another function call as dumpcap.exe and this point where capture filters can be applied. Wincap if you have a windows host, Airpcap if you have airpcap connected to your system or libpcap in Linux environment. This traffic is going to go through one of link layer drivers. In Wireshark environment its picking up traffic off a network. Lets look at Wireshark scenario that how its going to capture the traffic. Color-coded graphs illustrate the network traffic, the number of collisions, number of bad frames and so on. Network managers can customize a protocol analysers monitoring functions so that it display alarms for number of conditions such as number of retries exceed a certain threshold. The protocol analyser is often used to troubleshoot and monitor network performance by providing graphic display of network current state. They can generate alarms such as when specific type of packets present in the network or increased error levels in packets delivery. They help monitor and analyse the network and may even construct visual map of the network as well. Protocol analysers are the tools software or hardware capable of connecting to a Wired or Wireless network in order to intercept packets or frames.
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