Here are some basic firewall wall rules, these rules can be used to secure your home network router. These rules are specific to a particular router model and can differ from other router model. I will be updating this post periodically and include more advance topics, so please stay tuned.

1. Create a Address-List to allow access to your router from your local LAN and accept packets in input chain.
2. Drop packets from invalid connection in the forward chain.
3. Allow connection from the local LAN in the forward chain.
4. Allow established connection in the forward chain.
5. Allow related connection in the forward chain.
6. Drop all other traffic through the router in the forward chain.
7. Allow established connection through the router in the input chain.
8. Allow related connection through the router in the input chain.
9. Drop all other traffic to the router in the input chain.