Meet A and B, two apps running locally on my Windows box. A is listening on port [whatever], B is connecting to localhost:[whatever]
Although I can see traffic being sent by A and received by B, Wireshark (and winpcap) shows no activity on any network adapter.
What am I missing ?
Application B is connecting to the so called “loopback” interface. Here is an explanation on how to setup loopback capture in Wireshark.