When I have been working on Packet classification in IPv6, I found that the DSCP code values can be changed accordingly to provide privileged services.Can this be used while probing , as when we send the packets across the network to scan the Operating Systems for ports, can we mark these packets separately by modifying the DSCP values so that they get higher preference in the network traffic and do net get lost , thereby ensuring a more reliable port scanning with a higher probability of reaching out to all the systems.