Port forwarding should be fairly straightforward, but what Arris doesn't tell you is that you need to have the firewall on in order for port forwarding settings to have an effect.
I don't know why the "firewall off" option would mean "block everything", but as best I can tell, that was the case on my Arris DG2470A (from RCN, could be some custom firmware that RCN uses?)
So step by step:
- Go to your gateway address (mine was 192.168.0.1)
- Login. Default user/pass is admin/password
- Go to the "Firewall" tab.
- Ensure that "Enable Firewall" is checked. (Be sure to hit "Apply" if you have to check it)
- Click on "Virtual Servers / Port Forwarding" on the left.
- Add an entry for your desired port and internal ip etc. (If you're just forwarding one external port to the same internal port, then you'll end up typing that same port # four times, twice in each range)
- Save.
Hopefully this saves you some time.
I have tried many times to use a between ranges in the inbound port and local port and they would never work. I had to always use a single entry. The end result means my ARRIS DG2470 is limited to a max of 30 Virtual Servers / Port Forwarding entries.
For example, If I enter 30000 to 30004 nothing works. The 30000 is a game port and the 30004 is the RCon port. This only works for me if I enter 2 entires, one for 30000 to 30000 and one from 30004 to 30004.
Is this right? Has anyone else run into this issue or is this just the way it works?