+
+# We need to accept udp packets on port 68,
+# see https://dev.openwrt.org/ticket/4108
+config rule
+ option src wan
+ option proto udp
+ option dest_port 68
+ option target ACCEPT
+ option family ipv4
+
+#Allow ping
+config rule
+ option src wan
+ option proto icmp
+ option icmp_type echo-request
+ option target ACCEPT