Re: [lwip-users] Change ip_addr from struct to typedef (u32_t)

[address@hidden]

Bill Auerbach wrote:
> > From: Stephane Lesage [mailto:address@hidden
> > Compiling with #pragma pack(2) works for me.
> >      
> As did I and discussed it here: 
> http://lists.nongnu.org/archive/html/lwip-users/2009-09/msg00027.html
>
> Nothing in lwIP that is byte aligned is accessed by casting to u16_t or u32_t.  
> Packing by 2 works for me as well.
>    
Yes, but aside from etharp (needs struct ip_addr2),  IP frag/reass and 
netbios, wouldn't packing by 4 work for you as well? As long as the IP 
header of TX- and RX-packets is aligned, it *should* work, I think. My 
problem is I currently cannot test it - I'd have to dig out my last 
embedded platform that doesn't support unaligned pointers as Intel 
unfortunately does...

Simon