Re: [lwip-users] How to explicitly set IP6 header version = 6 in outgoing packets

[Ivan Delamer]

The header is now probably pointing at the Ethernet header, not the 
IPv6 header.

That is how it should be.

Check if byte at offset 14 has first nibble set to 6. Remember it is 
not the first byte that is 6. It is the first nibble of the byte.

Cheers
Ivan


> Date: Sat, 22 Nov 2014 06:08:02 -0700 (MST)
> From: mfkexpress <address@hidden>
> To: address@hidden
> Subject: Re: [lwip-users] How to explicitly set IP6 header version = 6
>         in outgoing packets
> Message-ID: <address@hidden>
> Content-Type: text/plain; charset=us-ascii
>
> Yes, I've set netif->output_ip6 = ethip6_output and PBUF_LINK_HLEN = 
> 14.
>
> Also IP6H_VTCFL_SET(ip6hdr, 6, tc, 0); is being called in 
> ip6_output_if()
> but just below this line when I checked condition:
>
>              if (IP6H_V(ip6hdr) != 6)  {
>              Uart_Puts("IP6 Header Version is not 6\n");
>              }
>
> I got above line printed on my output log which means it is not set to 
> 6 and
> also it remains "00" in outgoing packets.
>
> Any help please...
>
> Regards,
> Mohsin