I have a pix where I reset the config to factory defaults. Enabled both interfaces, assigned ips to both interfaces.
Put a default route on the unit route outside 0.0.0.0 0.0.0.0 x.x.x.193 1
It pings everything outside the network perfectly fine, however when attempting to ping from the internal interface I get nothing. I'm not as familiar with the Pix CLI as I am with IOS but I established nat with:
global (outside) 1 interface
nat (outside) 1 0.0.0.0 0.0.0.0 0 0
still I can ping everything outside, but if I do a ping inside x.x.x.193 (<- next hop router, mine) I get nothing. The inside machines can ping the pix but for some reason the pix won't pass the traffic from the inside to the outside.