Okay, but what next?
What if you changed anything else?
/interface list
add name=WAN comment=defconf
add name=LAN comment=defconf
/interface list member
add list=WAN interface=ether1 comment=defconf
add list=LAN interface=bridge comment=defconf
/ip firewall filter
add chain=input action=accept connection-state=established,related,untracked comment="defconf: accept established,related,untracked"
add chain=input action=drop connection-state=invalid comment="defconf: drop invalid"
add chain=input action=accept protocol=icmp comment="defconf: accept ICMP"
add chain=input action=accept dst-address=127.0.0.1 comment="defconf: accept to local loopback (for CAPsMAN)"
add chain=input action=drop in-interface-list=!LAN comment="defconf: drop all not coming from LAN"
add chain=forward action=accept ipsec-policy=in,ipsec comment="defconf: accept in ipsec policy"
add chain=forward action=accept ipsec-policy=out,ipsec comment="defconf: accept out ipsec policy"
# hw-offload=yes only on 7.18+
add chain=forward action=fasttrack-connection connection-state=established,related hw-offload=yes comment="defconf: fasttrack"
add chain=forward action=accept connection-state=established,related,untracked comment="defconf: accept established,related, untracked"
add chain=forward action=drop connection-state=invalid comment="defconf: drop invalid"
add chain=forward action=drop in-interface-list=WAN connection-nat-state=!dstnat connection-state=new comment="defconf: drop all from WAN not DSTNATed"
/ip firewall nat
add chain=srcnat action=masquerade out-interface-list=WAN ipsec-policy=out,none comment="defconf: masquerade"
/ipv6 firewall address-list
add list=bad_ipv6 address=::/128 comment="defconf: unspecified address"
add list=bad_ipv6 address=::1/128 comment="defconf: lo"
add list=bad_ipv6 address=fec0::/10 comment="defconf: site-local"
add list=bad_ipv6 address=::ffff:0.0.0.0/96 comment="defconf: ipv4-mapped"
add list=bad_ipv6 address=::/96 comment="defconf: ipv4 compat"
add list=bad_ipv6 address=100::/64 comment="defconf: discard only "
add list=bad_ipv6 address=2001:db8::/32 comment="defconf: documentation"
add list=bad_ipv6 address=2001:10::/28 comment="defconf: ORCHID"
add list=bad_ipv6 address=3ffe::/16 comment="defconf: 6bone"
/ipv6 firewall filter
add chain=input action=accept connection-state=established,related,untracked comment="defconf: accept established,related,untracked"
add chain=input action=drop connection-state=invalid comment="defconf: drop invalid"
add chain=input action=accept protocol=icmpv6 comment="defconf: accept ICMPv6"
add chain=input action=accept protocol=udp dst-port=33434-33534 comment="defconf: accept UDP traceroute"
add chain=input action=accept protocol=udp dst-port=546 src-address=fe80::/10 comment="defconf: accept DHCPv6-Client prefix delegation."
add chain=input action=accept protocol=udp dst-port=500,4500 comment="defconf: accept IKE"
add chain=input action=accept protocol=ipsec-ah comment="defconf: accept ipsec AH"
add chain=input action=accept protocol=ipsec-esp comment="defconf: accept ipsec ESP"
add chain=input action=accept ipsec-policy=in,ipsec comment="defconf: accept all that matches ipsec policy"
add chain=input action=drop in-interface-list=!LAN comment="defconf: drop everything else not coming from LAN"
# fasttrack6 only on 7.18+
add chain=forward action=fasttrack-connection connection-state=established,related comment="defconf: fasttrack6"
add chain=forward action=accept connection-state=established,related,untracked comment="defconf: accept established,related,untracked"
add chain=forward action=drop connection-state=invalid comment="defconf: drop invalid"
add chain=forward action=drop src-address-list=bad_ipv6 comment="defconf: drop packets with bad src ipv6"
add chain=forward action=drop dst-address-list=bad_ipv6 comment="defconf: drop packets with bad dst ipv6"
add chain=forward action=drop protocol=icmpv6 hop-limit=equal:1 comment="defconf: rfc4890 drop hop-limit=1"
add chain=forward action=accept protocol=icmpv6 comment="defconf: accept ICMPv6"
add chain=forward action=accept protocol=139 comment="defconf: accept HIP"
add chain=forward action=accept protocol=udp dst-port=500,4500 comment="defconf: accept IKE"
add chain=forward action=accept protocol=ipsec-ah comment="defconf: accept ipsec AH"
add chain=forward action=accept protocol=ipsec-esp comment="defconf: accept ipsec ESP"
add chain=forward action=accept ipsec-policy=in,ipsec comment="defconf: accept all that matches ipsec policy"
add chain=forward action=drop in-interface-list=!LAN comment="defconf: drop everything else not coming from LAN"