Updating your router
to operate strictly to RFC standards If there is a service open to the world one should create firewall rules that limit access to the service within strict parameters.
One should monitor the behavior of the service in normal operation and then create firewall rules that prevent the service being used outside its normal working parameters.
DD-WRT is a custom firmware that replaces your existing router’s firmware, resulting in you being granted a ton of options in your router.
In short, DD-WRT is a performance enhancing steroid for routers.
The Basic concepts of securing your Mikro Tik Router, or any router for that matter can be summarised as follows; Each of the above approaches & their implementations will be outlined in detail in this article: Stop all Unnecessary Services on the Mikro Tik Router.