I am trying to do this remotely, but afraid I may lock myself out : )
We have a phone system and ports forwarded to the phone box. But we are getting hit from hackers. the manufacturer is saying to whitelist just their IP addresses.
I am new to firewalls.
a) is this something this model can do?
b) how can I do that?
right now under firewall, it's set to nat only. they have other choices of low medium and high. once it's turned on to low, NAT stays on and I can add IPs to a white list?
think this is something I can do remotely or better to be on site so I don't lock myself out ?