What you will define here are the parameters of the interface card necessary to map the needs of your Cable/LAN access. Most of the parameters will already have been selected and the fields filled out with standard values. Start by checking they are correct.
IP Address | 10.0.0.1 |
Fill this field out if you have a static IP address for that interface. Make sure it is the one you have been assigned.
Subnet Mask | 255.255.255.0 |
Fill this field with the subnet mask corresponding to the network to which this interface is connected. Make sure it is the one you have been assigned.
Default Gateway | 10.0.0.250 |
This is the gateway through which your Internet requests will pass. This parameter is crucial to enable your firewall machine to reach the Internet.
Then, you will have to indicate which boot protocol is to be used when this interface is initialized. This depends on the protocol used by your ISP. Select one of the following:
Finally, you can decide whether or not to automatically activate this interface on each boot.
Then comes the configuration of your host as a member of the Internet.
External System Name | www.myco.org |
External Domain Name | myco.org |
Fill out those fields with the external identification of your firewall machine.
External DNS 1 | 123.456.789.122 |
External DNS 2 | 123.456.789.123 |
Those DNS IPs generally corresponds to the Domain Name Servers of your ISP.