Wireshark-bugs: [Wireshark-bugs] [Bug 11205] IEEE 802.11 dissector: Add a option for disable FCS

Date: Tue, 19 May 2015 02:17:15 +0000

Comment # 7 on bug 11205 from
> Doug seems to say you're already doing that:
>> Aruba could compute an FCS for the copy but that would eat up CPU cycles and >> it wouldn't represent what was transmitted anyway.  So they pad four null 
>> bytes to occupy the FCS space.
At this moment, for TX frames there is no FCS and no padding. The lack of FCS
is likely an oversight rather than a deliberate ploy to avoid CPU.


> So, *if* that's what you're doing, we could check the FCS if it's non-zero
> but not if it's zero.  That wouldn't require a preference.
It's not the current state of affairs, but I am going to angle for it to be the
solution. 

I should note that inserting a fake or padded FCS is what I would like R&D to
do - but what I can get them to do, and what I end up with may be two different
things.... raising a bug on it internally today.


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