Hi,
This can be done using Firewall-Filter, nevertheless! i support this idea, it is gonging to be useful specially for home users and users with limited network experience
+1 for DNS access list
/ip fire nat add chain=src-nat dst-address=192.168.88.0/24 action=accept place-before=0
ditonet is right. i was looking at RB450 when i said 400K.RB750 can handle 32k, not 400k.
For 400k I suggest RB450G, RB493G, RB800 or RB1100.
/tools user database save
/tools user database load
:if ($traf>1) do={:log info ("user" . $i . " exceeded 1Gb limit!")}
0.0.0.0/0 r 2YY.14Y.58.81 Wan
0.0.0.0/0 r 1XX.10X.38.21 Wan
tracert 2YY.14Y.58.100 -d