you don't need to open port 80 for accessing internet from inside LAN.
Since PIX work on adaptive security algorithm by default all traffic generating from inside LAN to outside will be allowed and return traffic for the same request will be allowed by the PIX because it inspect each and every packet traversing its inside and outside traffic.
However if a request is initiated from outside towards inside network, it will be blocked by PIX unless you open port on PIX or apply conduits/access list on the outside interface.
I am not sure if I have understood your question properly. You have to just enable NAT on the outside interface and it will automatically allows your PC to go to the internet. You have to point a default route on your PIX to the next hop of the outside interface. You also have to use ACl's to allow the traffic in.
This is actually a pretty cool feature, i didn't even know it existed until I was looking for a solution to advertise a subnet (prefix in BGP talk), only if a certain condition existed. This is exactly what conditional advertisements does
j ai une question j ai achete un routeur cisco 887VA-k9 , je le configuré avec la configuration ci- dessous
si je le lier avec mon pc portable sur l un de ses ports directement ça marche toute est bien ( la connexion internet + m...
Attached policy provides CLI access to the Cisco 4G router over text messaging. Two files are in the attached .tar file:
2. PDF with instructions on how to load and use the .tcl file.