Sorry for the simple question, but I am new to the PIX world and have a new 501 just out of the box.
I can't browse the Internet from behind the PIX, regardless of how much I open up the settings. The PIX seems to be performing its DHCP correctly to my ISP, but I can't browse out. Is there something I have to enable just to get started? I'm running behind a Fujitsu SpeedPort DSL modem which works fine when connected directly to the NIC.
The outside connection is negotiating properly with my ISP; I can see the appropriate DNS and gateways. And if I do an ipconfig from my computer (I have just one client on here for testing the setup), it shows me a PIX DHCP assignment of 192.168.1.21, the gateway of 192.168.1.1 and the correct connection-specific DNS suffix from my ISP.
What am I missing here? Is there a simple setup or troubleshooting document somewhere so I wouldn't have to bother the list with this basic stuff? I've tried the help inside the PDM, and the FAQ's on the Cisco site, but those assume you have at least taken Step 1 :(
This new config makes sense. The old one doesn't have a valid NAT. "nat(inside) 0 Allinternal 255.255.255.255 0 0" doesn't do NAT, what its tells the PIX is do not do NAT on the IP address. After changing to "nat(inside) 1 0.0.0.0 0.0.0.0 0 0" NAT is performed by the PIX. But what it means it to allow anything on the internal interface to go out.
You may want to change it to "nat(inside) 1 Allinternal 255.255.255.0 0 0" This will allow only the subnet 192.168.1.0 to go out. Anything else will not be allowed.
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