TCP/IP Settings for No-NAT (Static IP / Routable IP)

For a No-NAT setup you will have been given a block of IP addresses to use. When troubleshooting or setting up the IP addresses you will need to have just one PC plugged directly into the router, bypassing the network and any other switches or hubs.

In order to contact the router, the PC will need to be configured in the same address range as the router - this will mean putting the PC on a routable IP (out of your range) as a temporary measure, while we get the devices talking to each other.

Example Setup

Using the range of addresses: 62.69.66.100/30 (block of 4 addresses) as an example.

Base Address: 62.69.66.100 (not useable)
Available address: 62.69.66.101 (for firewall's WAN port)
Router: 62.69.66.102 (for ADSL router's LAN port)
Broadcast Address: 62.69.66.103 (not useable)

The subnet mask would be 255.255.255.252.

You need to input the details in your TCP/IP settings for your network card.

Once the router and PC are on the same address range they can communicate with each other, so you can telnet or browse into the router to change the configuration or check its settings.

Completing Setup

After the appropriate changes have been made, you will need to put your PC back on a private IP (e.g. 10.x.x.x or 192.168.x.x) and configure the firewall's WAN port with the routable address the PC had. Then you can configure the LAN side of the firewall through the firewall's interface.

Your ISP would not be able to help with this setup if it is a 3rd party firewall.