Port Triggering

Since the Cox internet did not play well with my other modems and they offered it for free, I use Cox's Panoramic Wifi Modem.

I wanted to access certain services externally, so I went to setup Port Forwarding. Many past equipment I've used do not separate out Port Forwarding and Port Triggering. They're both in the same setting, it's just a matter of how you set it up that changes it. Port Triggering is more secure and offers more customization, so that's what I do.

Cox separates the Port Forwarding into their Wifi app, and it does not allow you to define internal ports.

Port Triggering is within the modem itself. However, the field names are quite vague:

Trigger Port From
Trigger Port To
Target To Starting Port
Target To Ending Port

Cox's website has no mention of Port Triggering. Their AI and chat bot cannot find anything on it. I've reached out to Cox support twice, and neither persons could tell me anything about their Port Triggering in their own modem. And they looked for internal documentation and could find none.

Can anyone tell me what each field actually is?

Responses

Darkatt

Honored Contributor

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2K Messages

Hope this helps -

Port triggering offers a more secure alternative. The advantage is a rule put in place that has the inbound port open only when you initiate a session on that port. Once the session is dropped, the port is closed to random inbound traffic, and your WiFi network is closed to any potential hacker.

In router settings, "Trigger Port To" is the end of a port range your network uses to send data out. It tells your router which connection to watch for. When an app uses this outbound port, your router opens inbound ports to let data back in.

Think of it like a doorbell. "Trigger Port From" is the start of the doorbell. "Trigger Port To" is the end of the doorbell. When data rings this doorbell (starts the activity), the router opens a door (forwards a port) so the game or app can work.

The last 2 options you listed is a start port and an end port. This is for software capable of using a range of ports.

You can find more information on XFINITY's site, since the 2 wifi modems, the Cox Pano modem and the Xfinity modem are similar or identical devices. Their site goes into it in detail.

(edited)

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ExtraChrispy

Contributor III

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193 Messages

Port forwarding/triggering is simply no longer secure and the equivalent of putting a kick me sign on your router's WAN interface. Something I might suggest you explore is a service called Tailscale. Free for consumer use and allows as little or as much remote access to internal devices as you like without having to setup any port forwarding/triggering.

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