Recently, our compnay purchased a Fiber Service from AT&T. We are currently on a ADSL line. We have three Cisco appliances in parallel connection to our Internet ADSL connection. Our Public IP block for the fiber is new, so - we have to change all the outside interfaces and the DMZ on the PIX to the new IP block.
I assume I can manage these changes on the PIX using the PDM interface only as the Internal Interface will not change? My connection to that interface will stay connected even though I am making major interface changes.
In addition - if I change the DMZ interface and the Outside Interface using the PDM , will the PDM globally update all RULES useing these interfaces?