Knowledgebase

Configuration Description

In cases where an ISP assigns to your SmartNode’s WAN interface a public IP address, and provides you as well with multiple public IP addresses within the same subnet, all to be assigned to different hosts/servers within your network. The SmartNode being your access router, these hosts/servers will be sitting on the LAN side behind the SmartNode, and will physically be carrying private IP addresses within the local LAN subnet (example:192.168.1.100 and 192.168.1.101).

You would need these hosts/servers to be accessible from the WAN side with their secondary public IP addresses. To achieve this, a static NAPT profile needs to be configured. This configuration allows SmartNode to map between the local IP address of the host and its corresponding public IP address.

Command Sequence to copy, edit and paste

profile napt NAPT_PUBLIC
  static <LOCAL-IP-1> <PUBLIC-IP-1>
  static <LOCAL-IP-2> <PUBLIC-IP-2>
  static <LOCAL-IP-3> <PUBLIC-IP-3>

context ip router
  interface WAN
    ipaddress dhcp
    use profile napt NAPT_PUBLIC

  interface LAN
    ipaddress 192.168.1.1 255.255.255.0