Re: decode MPLS-contained packets?

[Gert Doering via tcpdump-workers <tcpdump-workers () lists tcpdump org>]

> --- Begin Message ---
>
>
> From: Gert Doering <gert () greenie muc de>
>
> Date: Thu, 7 May 2020 09:42:39 +0200
>
> Hi,
>
> On Thu, May 07, 2020 at 03:39:07AM -0400, Francois-Xavier Le Bail via tcpdump-workers wrote:
> > What if the first nibble is <> de 4, 6, 1, 0, e.g. 'f' like the first f of ff:ff:ff:ff:ff:ff ?
>
> This is, as far as I understand, the primary reason why control word
> was added.  Routers misinterpretation these packets due to MAC addresses
> starting with "4" or "6".
>
> gert
>
> -- 
> "If was one thing all people took for granted, was conviction that if you 
>  feed honest figures into a computer, honest figures come out. Never doubted 
>  it myself till I met a computer with a sense of humor."
>                              Robert A. Heinlein, The Moon is a Harsh Mistress
>
> Gert Doering - Munich, Germany                             gert () greenie muc de
>
> --- End Message ---
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