That's what I meant.

Atsushi

> 	are you suggesting something like this in ip_input()?
> 
> itojun
> 
> 
> if (((u_long)mtod(m, caddr_t)) % ALIGNBYTES) {
> 	/* unaligned ip header - force pullup */
> 	m = m_pullup_always(m, sizeof struct ip);	/*always pullup*/
> }
>