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Wireshark-bugs: [Wireshark-bugs] [Bug 7225] Unable to capture on tun0

Date: Fri, 4 May 2012 17:05:00 -0700 (PDT)
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=7225

--- Comment #1 from Guy Harris <guy@xxxxxxxxxxxx> 2012-05-04 17:05:00 PDT ---
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.

Can you reproduce this with Wireshark 1.6, which is the current supported
release?

If so, then, when you have the tun0 connection up:

    What does "tcpdump -i tun0 -L" print?

    What does "dumpcap -i tun0 -L" print?

(Those commands might have to be run as root.  If you get a permissions error
when running them as yourself, try running them as root.)

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