Wireshark · Ethereal-users: Re: [Ethereal-users] 802.11 FCS not detected in mgmt frames?

[Aleksandr Milewski <n6mod@xxxxxxxxxxxx>]

At 18:28 -0800 on 031221, Guy Harris commanded the electrons to 
create a missive titled "Re: [Ethereal-users] 802.11 FCS not detected 
in mgmt fr":
|On Sun, Dec 21, 2003 at 02:53:28PM -0800, Aleksandr Milewski wrote:
|> I just built a machine to run as a wireless sniffer, and things are
|> mostly working, but all 802.11 management frames come through as
|> malformed, apparently because the FCS isn't dissected properly.
|>
|> In particular, the end of every packet is a random tag number with a
|> random length...it looks like the FCS is getting dissected as a TLV.
|
|I'd need to see a capture in order to see why it's happening.

Attached. Let me know if it gets mangled and I'll find another way to 
send it to you. This is just a half-dozen probe requests from the G4 
next to me. I'm in a fairly quiet .11 realm at the moment.

|> I searched through the archives and saw indications that this was
|> going to be fixed, but it doesn't seem to be so.
|
|Where did you see that in the archive?

Going back and looking at Google turned up, perhaps that was a 
slightly optimistic statement. There were certainly disucssions of 
this last year on -dev and -users. (Google for "Malformed Frame 
802.11")

-Z

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Aleksandr Milewski                                              N6MOD
n6mod@xxxxxxxxxxxx                           http://www.milewski.org/

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