grep: warning: stray \ before :
-A PREROUTING -i br0 -p tcp -m set --match-set unblock dst -j REDIRECT --to-ports 1181
-A PREROUTING -i br0 -p udp -m set --match-set unblock dst -j REDIRECT --to-ports 1181
-A PREROUTING -i br0 -p tcp -m tcp --dport 53 -j DNAT --to-destination 192.168.1.1
-A PREROUTING -i br0 -p udp -m udp --dport 53 -j DNAT --to-destination 192.168.1.1
-A PREROUTING -i ikev2 -p tcp -m set --match-set unblock dst -j REDIRECT --to-ports 1181
-A PREROUTING -i ikev2 -p udp -m set --match-set unblock dst -j REDIRECT --to-ports 1181