:INPUT,FORWARD,OUTPUT -j MARK --set-xmark 0xfeedcafe/0xfeedcafe;=;OK -j MARK --set-xmark 0;=;OK -j MARK --set-xmark 4294967295;-j MARK --set-xmark 0xffffffff;OK -j MARK --set-xmark 4294967296;;FAIL -j MARK --set-xmark -1;;FAIL -j MARK;;FAIL
