Subject: Re: skb header allocation

From: Stephen Hemminger <[email-masked]>
Date: Thu, 3 Sep 2009 16:23:44 -0700

On Wed, 26 Aug 2009 08:01:23 +0200
Frank Blaschka <[email-masked]> wrote:

> Is it save to change dev->hard_header_len to a value other than ETH_HLEN for
> an ethernet device?
> 
> I rememeber we run in trouble with some kernel components (netfilter?, I'm
> not sure can't remember the details ...) when we did this is the past.
> 

You can add extra data but need a minimum with ETH_HLEN of space above
packet when receiving.

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