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Re: [ipwave] 802.11 Data vs 802.11 QoS Data in IPv6-over-802.11-OCB-implementations

Alexandre Petrescu <alexandre.petrescu@gmail.com> Fri, 07 December 2018 07:43 UTC

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From: Alexandre Petrescu <alexandre.petrescu@gmail.com>
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Date: Fri, 07 Dec 2018 08:43:29 +0100
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Subject: Re: [ipwave] 802.11 Data vs 802.11 QoS Data in IPv6-over-802.11-OCB-implementations
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Re: [ipwave] 802.11 Data vs 802.11 QoS Data in 
IPv6-over-802.11-OCB-implementations

Hi IPWAVErs,

I need to let you know the following.

Recently programmers from router manufacturer informed me that a Cohda 
simulator does use QoS Data headers to transport BSM messages, and not 
Data headers.

Our agreed Internet Draft IP/OCB says that IP should use QoS Data 
headers (and not Data headers).  So Cohda simulator could easily agree 
to this Internet Draft.

For information, the headers of a BSM generated by a Cohda simulator and 
displayed by a wireshark tool are like this:

Ethernet
IPv4
UDP
CohdaWireless(proprietary)
802.11-QoSData
LLC
1609.3
1609.2(certificate, signature)
BSM(2016)

The precise packet dump is not available upon any request, because I do 
not know the precise licensing conditions from router manufacturer and 
from Cohda.

Alex

Le 15/07/2018 à 18:03, tony.li@tony.li a écrit :
>
>
>> On Jul 15, 2018, at 7:14 AM, Alexandre Petrescu 
>> <alexandre.petrescu@cea.fr <mailto:alexandre.petrescu@cea.fr>> wrote:
>>
>> In return, as a side point, I would ask whether or not a car with IPv6
>> with "Data" headers talks to an RSU which implements IPv6 "QoS Data"
>> headers?  The answer to this would be a good information point in 
>> deciding.
>
>
> Some device drivers may choose to parse both.  Some may choose to 
> parse only one.
>
> I don’t see how this helps in deciding.
>
> Tony
>

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