Firewall > 1:1 NAT

Requirements and Usage

A 1:1 NAT requires at least one additional static IP configured on your Meter Security Appliance’s WAN port (2 IPs total). See Hardware > Security Appliances > Ports.

A 1:1 NAT is typically used to access a server on the local network via the public IP address. For example, if you have a secondary public IP of 12.12.11.11 and set up a 1:1 NAT with this IP to an internal host of 10.103.0.7 - ALL traffic destined for 12.12.11.11 will be forwarded to 10.103.0.7. This will allow 10.103.0.7 to act as if it were on the public internet.

Configuration

To configure a 1:1 NAT log into the Meter Dashboard and navigate to Firewall > 1:1 NAT > Click on “Add 1:1 NAT rule”. This will expand the menu on the right-hand side of the screen.

Fill in the following fields:

Name - The display name for your NAT rule.
Description - Used to describe the purpose of the rule.
WAN Uplink - Select the WAN interface where a secondary IP is configured.

External IP address - The secondary IP for the NAT rule.
Internal IP address - The internal IP address that will receive the forwarded traffic.

Once the rule is created, it will populate in the list:

The rule can always be edited or disabled by clicking on the rule to expand the configuration window on the right-hand side of the screen.

If a rule needs to be deleted, select the rule and use the ‘Delete’ button in the actions menu.

If any assistance is required, please don’t hesitate to contact Meter Support!