# Auto Repair Passthrough In Mangle - MikroTik Script RouterOS

    Script to solve passthrough errors in mikrotik mangle with many rules.

    note: remember we understand the conditions of each mangle, because each setting will be different conditions, here I generally assume that all "mark-connection", "mark-routing" uses passthrough = yes and "mark-packet" uses passthrough = no

    foreach mrk in=("packet","connection", "routing") do={
    foreach i in=([/ip firewall mangle find where action=("mark-" . $mrk)]) do={
    :if ($mrk = "packet") do={
    local cmd ("ip firewall mangle set " . $i . " passthrough=no")
    :execute $cmd
    }
    :if ($mrk = "connection") do={
    local cmd ("ip firewall mangle set " . $i . " passthrough=yes")
    :execute $cmd
    }
    :if ($mrk = "routing") do={
    local cmd ("ip firewall mangle set " . $i . " passthrough=yes")
    :execute $cmd
    }
    }
    }
    Credit: www.o-om.com