Zend certified PHP/Magento developer

RouterOS is constantly requesting DNS names that are in a firewall lists

  • There is a network device for which RouterOS blocks internet access from 20:00 till 09:00.
  • There are some exceptions that should work no matter whether internet access is blocked or not.
  • These exceptions are not IP address ranges but domain names, because IP addresses change constantly.

RouterOS allows to add domain names to firewall lists and even resolves them.

But it resolves them no matter whether they are needed or not. No matter whether a device requested them or not.

How to make RouterOS resolve domain names in the lists on demand only? It means, only if they are requested by some host in the LAN.