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Arris NVG558 Router - Firewall - Port Triggering

2026-10-15 07:06:39.447

Arris NVG558 Router - Firewall - Port Triggering

Here's how to configure port triggering on your NVG558 router.
A trigger port offers temporary pinholes that are opened in response to particular outbound traffic, under the assumption that an application creates an outbound session X, and requires an inbound session Y to be forwarded through the NAT/Firewall into the LAN.
  1. Sign in to the Admin WebGUI then click
    Firewall
    .
    You must be connected to the network to access the admin page.
  2. Click
    Port Triggering
    .
  3. Configure the following then click
    Add
    :
    • Application Name
      : The name of the triggering rule you are creating that is not provided in the Select Application drop-down list.
    • Trigger Protocol Applicable protocols
      : TCP/UDP, TCP, and UDP.
    • Trigger Port Range
      : Enter the lowest port number in the range in the left box and the highest number in the right box. (Apply the same port number in both boxes if not a range.)
    • Open Protocol Applicable protocols
      : TCP/UDP, TCP, and UDP.
    • Open Port Range
      : The port or range of port on the selected protocol which will receive the pin-holed Traffic.
    Firewall - Port Triggering