In the attached file I wanted to set up a firewall and test it.
The firewall interface fa0/0 ip address :10.100.100.1, the fa0/1 ip is:188.8.131.52
I would like to set up a router based firewall using SDM. I have tried it but then (the firewall locked me out) I couldn't use SDM through my computer, since I have a loopback Interface IP:10.100.100.50 and the default gateway pointing to 10.100.100.1 (which is the IP address of fa0/0 of the firewall).
That would help if there is a walkthrough steps on how to configure a firewall on this Lab.