how to use wireshark to view network traffic

This can be done through the use of RSPAN. You can set up a place where you can have a wireshark computer set up and you can monitor any port in the network. Then there are several other ways of using fx packet capture in the ASA and then export it and look at it in wireshark. The monitor port can not send data out to the switch anymore but it will recieve all that the source port sees and sends. Monitor session (same as session above) destination interface (and add the interface you want to send the traffic out on fx gig1/0/2)Ī tip, if you are to use a monitor port on a swithc set a empty rj45 connection in the destination switchport if you leave it configured so that you or someone else does not use it by mistake. Monitor session (session number fx 1) source interface (and add the interface you would want wo listen to fx gig1/0/1)Īnd then you set up the port you want your wireshark to be connected to Started by Gerald Combs in 1998, this open-source tool allows you to find out the composition, amount, and latency of network traffic. To that end, WireShark can be of great help. But, the switch does not pass all the traffic to the. The command for this on fx a 3750 would be something like this) Having a detailed view of the data packets crossing your network makes it easier to determine its security performance. Wireshark can also monitor the unicast traffic which is not sent to the networks MAC address interface. To use wireshark on a Network in its simplest form you configure a SPAN port at the local switch.

How to use wireshark to view network traffic