To add default IPv6 FastTrack when updating from ANY v7 previous version, just paste this into the terminal
(barring arbitrary changes to the default configuration already made).
New devices netinstalled with default 7.18beta4 config and later, or reset with default configuration on 7.18beta4 and later, have already the rule.
{
/ipv6 fire filter
remove [find where comment=“defconf: fasttrack6”]
add chain=forward action=fasttrack-connection connection-state=established,related comment=“defconf: fasttrack6”
:local idone [find where comment=“defconf: fasttrack6”]
:local idtwo [find where comment=“defconf: accept established,related,untracked” and chain=forward]
:put $idone
:put $idtwo
move $idone destination=$idtwo
}
For full default firewall rules:
http://forum.mikrotik.com/t/buying-rb1100ahx4-dude-edition-questions-about-firewall/148996/25