Wireshark-bugs: [Wireshark-bugs] [Bug 7225] Unable to capture on tun0
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From: bugzilla-daemon@xxxxxxxxxxxxx
Date: Tue, 29 May 2012 06:57:07 -0700 (PDT)
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=7225

--- Comment #2 from Chris Maynard <christopher.maynard@xxxxxxxxx> 2012-05-29 06:57:06 PDT ---
(In reply to comment #1)
> The Linux tun driver appears to give tun devices ARPHRD_NONE as a link-layer
> type.  libpcap prior to 1.0 mapped that to DLT_LINUX_SLL; libpcap 1.0 and later
> map it to DLT_RAW.  Neither of those is DLT_EN10MB, so I'm not sure why
> Wireshark is trying to use DLT_EN10MB.

One way this could happen is if you were to start Wireshark with "-y EN10MB". 
You weren't by any chance trying to that, were you Dave?

Dave, are you able to provide anymore information as Guy requested in comment
1?

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