# We need to accept udp packets on port 68,
# see https://dev.openwrt.org/ticket/4108
config rule
+ option name Allow-DHCP-Renew
option src wan
option proto udp
option dest_port 68
# Allow IPv4 ping
config rule
+ option name Allow-Ping
option src wan
option proto icmp
option icmp_type echo-request
option family ipv4
option target ACCEPT
+# Allow DHCPv6 replies
+# see https://dev.openwrt.org/ticket/10381
+config rule
+ option name Allow-DHCPv6
+ option src wan
+ option proto udp
+ option src_ip fe80::/10
+ option src_port 547
+ option dest_ip fe80::/10
+ option dest_port 546
+ option family ipv6
+ option target ACCEPT
+
# Allow essential incoming IPv6 ICMP traffic
config rule
+ option name Allow-ICMPv6-Input
option src wan
option proto icmp
list icmp_type echo-request
+ list icmp_type echo-reply
list icmp_type destination-unreachable
list icmp_type packet-too-big
list icmp_type time-exceeded
# Allow essential forwarded IPv6 ICMP traffic
config rule
+ option name Allow-ICMPv6-Forward
option src wan
option dest *
option proto icmp
list icmp_type echo-request
+ list icmp_type echo-reply
list icmp_type destination-unreachable
list icmp_type packet-too-big
list icmp_type time-exceeded