what the all rule for firewall in mikrotik
It depands on what types of filters you want..u can have as many rules as you want
To allow all traffic through, don’t add any filters at all. By default all traffic is allowed. However, this is not recommended as it is somewhat insecure. You need to learn the general principles of Firewalls and Linux “iptables” and then apply that knowledge to the specifics of the MikroTik Firewall implementation.
Firewall rule implementation is a delicate art requiring considerable networking knowledge and should not be undertaken lightly. If you don’t know what you’re doing and sometimes even if you do, it is very easy to either implement rules which can result in security breaches or lock out users and services that should be allowed through.