Can wireshark trace traffic from my local browser to a local .net application I have with a HttpListener? (e.g. local to local)
I can't seem to detect this traffic at the moment with wireshark. Is there a way to do it?
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See this artical here: http://wiki.wireshark.org/CaptureSetup/Loopback.
Given that you're talking about Windows (.NET assumption) then the short answer is that no, wireshark cannot do this out of the box. This is a limitation of the Windows networking stack, rather than Wireshark itself.
On that page there are workarounds, which include installing a special Loopback adapter (and you could then redirect
localhost to the loopback adapter), or using a commercial sniffer, and then opening the file in Wireshark.