Can someone tell me exactly how a router and firewall work in this example.
Router connects to internet
Firewall connects to router
Router has IP range 10.0.0.0/26
Firewall outside interface is 10.0.0.3
Firewall also has some Nat policies for some 10.0.0.0/26 IPs that translate to internal IPs
Now my question is does the Router send Arp requests to the firewall and does the firewall respond? Does the firewall check its NAT table ? How does this oepration work, anyone can explain ?