rb-check.script

# rb-check
# Mikrotik RayBill Network Checker

# PPPoE Interface
:local rbInterface pppoe-rb

# Gateway in RB network
:local rbGateway 192.168.1.1

# Ping failure threshold
:local rbFailThreshold 3

# globals
:global rbPingFailCount
:global rbTimerCount

# initialize global variable
:if ([:typeof $rbPingFailCount] = "nothing") do={ :set rbPingFailCount 0 }
:if ([:typeof $rbTimerCount] = "nothing") do={ :set rbTimerCount 0 }

# locals
:local rbPingResult

:set rbTimerCount ($rbTimerCount + 1)
:set rbPingResult [/ping $rbGateway count=1 interface=$rbInterface]

# ping failed
if ($rbPingResult = 0) do={
  :log warning "Ping to RB network failed."
  :set rbPingFailCount ($rbPingFailCount + 1)
  :if ($rbPingFailCount > ($rbFailThreshold - 1)) do={
    :log warning "RB Gateway Check threshold reach, will restart the interface"
    /interface set disabled=yes [/interface find name=$rbInterface]
    delay 6
    /interface set disabled=no [/interface find name=$rbInterface]
    :set rbTimerCount 0
  }
}

# ping success
:if ($rbPingResult = 1) do={
  :set rbTimerCount 0
  :log info "Ping to RB network - OK"
}

:if ($rbTimerCount = 0 ) do={
  :set rbPingFailCount 0
}