# Written by Sam Norris, ChangeIP.com

:log info "Checking default gateway for dhcp interfaces."
:local axtel1Name [ /ip dhcp-client get 1 interface ]
:local axtel2Name [ /ip dhcp-client get 2 interface ]
:local currentGatewayAxtel1 [ /ip dhcp-client get 1 gateway ]
:local currentGatewayAxtel2 [ /ip dhcp-client get 2 gateway ]
:local existingGatewayAxtel1 [ /ip route get $axtel1Name gateway ]
:local existingGatewayAxtel2 [ /ip route get $axtel2Name gateway ]


:if ($currentGatewayAxtel1 != $existingGatewayAxtel1) do={

  :log info ("Setting default gateway for " . $axtel1Name)
  :local a [ /ip route find comment=$axtel1Name ]

  :if ([ :typeof $a ] = nil ) do={
    :log info "adding route..."
    /ip route add dst-address=0.0.0.0/0 gateway=$currentGatewayAxtel1 routing-mark=$axtel1Name comment=$axtel1Name
   } else={
    :log info "changing route..."
    /ip route set $a gateway=$existingGatewayAxtel1
   }
} else={
  :log info "No route changes needed for Axtel1."
}

:if ($currentGatewayAxtel2 != $existingGatewayAxtel2) do={

  :log info ("Setting default gateway for " . $axtel2Name)
  :local a [ /ip route find comment=$axtel2Name ]

  :if ([ :typeof $a ] = nil ) do={
    :log info "adding route..."
    /ip route add dst-address=0.0.0.0/0 gateway=$currentGatewayAxtel2 routing-mark=$axtel2Name comment=$axtel2Name
   } else={
    :log info "changing route..."
    /ip route set $a gateway=$existingGatewayAxtel2
   }
} else={
  :log info "No route changes needed for Axtel2."
}