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Can I see traffic occurring on the local loopback address 127.0.0.1?

April 26, 2017address local loopback Traffic

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Can I see traffic occurring on the local loopback address 127.0.0.1?

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TracePlus/Ethernet captures network packets at what is called the NDIS (Network Driver Interface Specification) layer in Windows. Traffic transmitted or received on the local loopback address 127.0.0.1 is routed through the TDI (Transport Driver Internface) layer (the layer below Winsock), so TracePlus/Ethernet will not be able to see it. We have another product called TracePlus/Winsock which can see the local loopback traffic at the Application layer which is the Winsock API. You would need to start a debug session with the application that is listening on a port bound to the local loopback address in order to see the traffic. For more information on TracePlus/Winsock, visit http://www.sstinc.com/winsock.html.