public void apply(ref Parsed_packet p, packet_out b)
{
b.emit(p.ethernet);
if (p.ip.isValid())
{
ck.clear();
p.ip.hdrChecksum = (bit16)0;
ck.update(p.ip);
p.ip.hdrChecksum = ck.get();
}
b.emit(p.ip);
}
