On Friday 26 February 2016 14:18:17 Andreas Pape wrote:
> +                       if (vhdr->h_vlan_encapsulated_proto == ETH_P_IP) {

Either you htons the ETH_P_IP or you have to ntohs the
vhdr->h_vlan_encapsulated_proto. But one of them has to converted to the byte 
order of the other one.

Kind regards,
	Sven