Good day,
I would like to ask for help with the draft stateful firewall.
Stateful Firewall will be implemented on the router HR1.
Could someone write a few basic rules for network security?

Between the routers BR1 and BR2 is OSPF
Between the routers HR1 and ISP is BGP
IP address 192.168.0.0 is represents a public IP address
On routers BR1 and BR2 is Masquerade
I apologize for my bad English.

This may be of some use to you: http://wiki.mikrotik.com/wiki/Securing_ ... rOs_Router