Ethereal-dev: Re: [Ethereal-dev] Searching for packets with incorrect checksums

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From: Guy Harris <guy@xxxxxxxxxx>
Date: Tue, 18 Dec 2001 13:55:23 -0800 (PST)
> Sorry, IPv7 is an internal code-name for using the 0x8000 bit
> of the offset field. My point was that when that bit is set (=1)
> it shows up as 0 in the display and as an 0x80 in the hex dump.

In what RFC or Internet draft is that specified?  Currently, we show
only the DF and MF bits in that field.  There's a #define for 8000 for
IP_CE, listed as a "Congestion" flag, but RFC 3168 seems to suggest that
the ECN stuff shows up in the TOS field instead.