Hmmm, found the following online. I have to look but I think port 4 off the box feeds my network switch that this pc gets its internet off of. . I am going to look and try switching when my son is off the xbox...
From another forum,
First, thanks for the feedback.
1. Correct and Yes. Coax to get cable channels and on demand, while WiFi for DVR, Guide Channel , etc.
2. There is No Bridge Mode just a Mode that allows to use own router but creates Double NAT.
3. The AlticeOne App, if using own router cannot use the App. App allows you to watch tv on mobile devices and svr recordings.
4.People Mention will use Alice WiFI SSID, no bridge mode as mentioned and somone mentioned if use own router, Port4 on main box is used to connect own router.
OK, This is where I get confused. Some, such as yourself are suggesting that there is a double nat, which I would find problematic. Others have indicated that while this was originally created as a double nat, that the "bridge mode" currently treats port 4 as the ethernet side of a modem and rather than a double nat, it connects via a different ip address than the rest of the system. Yes, the Altice is still routing for its own network, but is allowing a second network on port 4. This seems fairly easy to determine: point a browser to whatsmyip or similar service, is the reported IP the same as your firewall reports as its external IP? If so, no double nat, if not, then there is a double nat.
If port 4, in that mode, is receiving its own public IP address that my firewall/router can access, and the Interent sees my firewall as that address, then that is sufficient for me. If thats the case, then I would ask if the other ports are still functioning as part of the Altice network? It seems that the problem with the app is that a mobile device cannot connect to the Altice system, probably because the Altice system sees that device as a foreign device (traffic is going out the router/firewall connected to the second address and then coming back in the Altice system as if it were over the internet.)
But, if the other ports (1-3?) are connected, I can easily set my ASA to connect to both 4 and say 3, and route internet traffic out the interface connected to 4, but anything for the Altice network through 3. I might have to play a little with repeating broadcasts depending on the exact protocol used, but thats just a fun way to spend an afternoon. (Yes, I have an odd definition of fun. In fact, I dont really care about the app, but fixing this seems like an entertaining problem.)