Ethereal-dev: Re: [Ethereal-dev] link-layer packet lengths?

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From: Guy Harris <guy@xxxxxxxxxx>
Date: Fri, 19 Jul 2002 14:22:33 -0700
On Fri, Jul 19, 2002 at 04:18:04PM -0500, David Frascone wrote:
> So, perhaps I'm misunderstanding 802.3.  Do link layer packets sometimes
> just carry extra garbage that needs to be truncated by looking at a length
> field in the packet?

Yes.

There's a minimum length for Ethernet/802.3 packets; as I remember, it's
64 bytes including the 4-byte FCS, so it's a minimum of 60 bytes of
frame including the 14-byte link-layer header but not including the CRC.