1:INPUT,FORWARD,OUTPUT 2-j MARK --set-xmark 0xfeedcafe/0xfeedcafe;=;OK 3-j MARK --set-xmark 0;=;OK 4-j MARK --set-xmark 4294967295;-j MARK --set-xmark 0xffffffff;OK 5-j MARK --set-xmark 4294967296;;FAIL 6-j MARK --set-xmark -1;;FAIL 7-j MARK;;FAIL 8