Wireshark localhost traffic capture [closed]

If you’re using Windows it’s not possible – read below. You can use the local address of your machine instead and then you’ll be able to capture stuff. See CaptureSetup/Loopback.

Summary: you can capture on the
loopback interface on Linux, on
various BSDs including Mac OS X, and
on Digital/Tru64 UNIX, and you might
be able to do it on Irix and AIX, but
you definitely cannot do so on
Solaris, HP-UX…
.

Although the page mentions that this is not possible on Windows using Wireshark alone, you can actually record it using a workaround as mentioned in a different answer.


EDIT: Some 3 years later, this answer is no longer completely correct. The linked page contains instructions for capturing on the loopback interface.

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