Knowledgebase: CommView

What exactly does CommView "see" when installed on a PC connected to a LAN?
CommView enables the network card's promiscuous mode and can capture network traffic on the local segment of the LAN. In other words, normally it captures and analyzes packets addressed to all of the computers on the segment, not only to the one where the program is running. There are certain limitations for Wireless Ethernet adapters (you can monitor only inbound/outbound traffic) and switched networks (see the next question about switches in this FAQ).
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