flush ruleset

define nic = eth0

table inet mangle {
	chain prerouting {
		type filter hook prerouting priority -150;
		iif $nic ip dscp == cs1 ct mark set 0x01
		iif $nic ip dscp == cs2 ct mark set 0x02
	}

	chain postrouting {
		type filter hook postrouting priority 150;
		oif $nic ct mark == 0x01 ip dscp set cs1
		oif $nic ct mark == 0x02 ip dscp set cs2
	}
}