In some email I received from Jason R Thorpe, sie wrote:
> On Tue, Nov 07, 2000 at 03:13:52PM +0900, itojun@iijlab.net wrote:
> 
>  > 	yes, and don't play with data on mbuf.
> 
> Yah, that'd be nice.
> 
>  > 	then ping and other IP_HDRINCL applications will not work....
> 
> Well...
> 
> If we allocated a new socket option number, the old one could get
> swapped, and the new one could not :-).

For this one specific application you're building, jason, how many
other applications are you going to effect ?

Since you seem to be the only one needing the fields in network order,
shouldn't you be using a wrapper which does the byte swapping for you?

At least that way you fix your "ip_output.c" problem too.

Darren