Alexandru Petrescu <[email protected]> wrote: >> This proved useful for Ethernet; too much maybe since we were fooled >> into extending IP over Ethernet to Wi-Fi...
> I take advantage of this note from Pascal, to extend a parenthesis.
> IPv6-over-Ethernet is specified in RFC2464.
> IPv6-over-WiFi is not specified. There are differences in the formats
> of headers between Ethernet and WiFi, noticed by wireshark.
Actually, that's not true.
Wireshark notices the difference because wireshark (and whatever OS you are
running it on), provides an interface that lets you see below the Ethernet
compatibility layer.
Some years ago (before wireshark), if you ran tcpdump on a wifi interface,
you would see only ethernet, as the ethernet-compatibility part of 802.11
was all that was exposed to the operation system by the firmware in the
wifi card. In Linux, it's only since much of the 802.11 logic moved from
the firmware in the PCMCIA card into the Linux kernel that it became possible
to see what was below 802.3.
This is akin to seeing IPv6, but not 6lowpan below.
--
Michael Richardson <[email protected]>, Sandelman Software Works
-= IPv6 IoT consulting =-
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