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Arris NVG558 Router - Firewall - IP Passthrough

2026-10-15 07:09:21.491

Arris NVG558 Router - Firewall - IP Passthrough

Here's how to configure IP passthrough for your NVG558 router.
IP Passthrough allows a single PC on the LAN to use the public IP address of the Arris NVG558 router .
  1. Sign in to the Admin WebGUI then click
    Firewall
    .
    You must be connected to the network to access the admin page.
  2. Click
    IP Passthrough
    .
  3. From the 'Allocation Mode' dropdown, do one of the following:
    • Off
      : disables passthrough.
    • Passthrough
      : Assigns the Gateway's public IP address to a single LAN-side client.
    • Default Server
      : Forwards externally-initiated traffic to a specific LAN-side client. Use this if you have a publicly-available server, or have a network application that uses arbitrary port numbers (for example, certain online games).
  4. From the 'Passthrough Mode' dropdown, do one of the following:
    • DHCPS-dynamic
      : The Gateway assigns its WAN IP address to the first LAN client that requests a DHCP lease. It may be helpful, after the gateway has obtained a WAN IP address, to cycle the desired LAN client's interface or reboot it. On disabling this feature, you should reboot the LAN client.
    • DHCPS-fixed
      : the Gateway assigns its WAN IP address to a specific LAN client. It may be helpful, after the gateway has obtained a WAN IP address, to cycle the LAN client's interface or reboot it. On disabling this feature, you should reboot the LAN client.
    • Manual
      : a LAN client must be manually configured with the gateway's assigned WAN IP address and gateway information.
  5. Click
    Save
     for changes to take effect.