I have just added a PIX 501 to my network.
I ran the statup wizard.
The outside interface gets it's IP using DHCP from the ethernet modem in bridged mode. That works OK
I wasn't entirely sure what to use for the PAT/NAT setting so I selected PAT with the IP address on the outside interface.
I haven't encountered PAT before so I'm not sure exactly how it operates. Can anyone offer a brief description of how it differs with NAT.
The NAT configuration refers to using an IP from the Global Address Pool - what is this ?
What I really want to achieve is to have any PC inside to have web browsing. To have certain PC's outside to have remote access to a small business server on the inside. To use the Small Business Server as the VPN server and just pass this traffic through the firewall.
Something that is confusing me is that the default configuration works fine and allows web browsing but also smtp mail is still getting delivered to the server and I thought that by default all inbound ports were blocked.