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These include detection of intrusions and attempted intrusions by a foreign network.

For businesses in Ottawa, computer services can be improved by utilizing packet sniffers in analyzing various network problems. Packet sniffers, while majorly under use by hackers, can be used by companies to review their network system. Others come with capabilities of tracking down and recording errors.

Packet analyzers also vary in the way they represent captured data. Some tools have the ability to generate traffic and use the data to test the robustness of a network by monitoring how it handles data containing errors. Packet sniffers can do more than capture and decode data. Once the data has been captured, it is decoded and stored in human-readable format, which allows the user to read and utilize the information being exchanged within the network. Capturing just the headers has the advantage of reducing storage requirements. Once data has been captured, sniffing tools either record the entire content of the data or just the headers. To capture data from several channels, one would require more than one adapter. In wireless connections, packet sniffers utilize adapters to be able to gain access to and read data from a network. Network taps are considered better by some hackers because they do not drop data packets even in a high traffic network. Some tools use switches with monitoring ports which mirror data packets as they are transmitted through the network. In wired networks, such as Ethernet and Token Ring networks, packet sniffers can analyze data packets from all parts of the network using one machine. Packet sniffers can capture data from both wired and wireless networks. If the data is coded, the packet sniffer will decode it first before reading and display the values contained within the data packets. Packet sniffers capture data packets during transmission of a data stream.

IT companies offering network security in Ottawa, will be well aware of these tools as well as how they function. Packet sniffers are tools which can be used to intercept, capture, and log data packets as they move through a network.