Inbound port not open

GRC Shields Up says this port is stealth.

Foward rule is Enable, TCP, Single Port 3588, WAN 1, Server IP Address
Firewall rule is Enable, WAN Connection Any, Protocol TCP, Source Any Address, Single Port 3588
Destination Any Address, Single Port 3000, Action Allow, Event Logging Enable

I can ping the WAN address successfully, but the port is closed.
nc -zv WAN.address 3588
times out

What am I doing wrong?

If you are forwarding TCP port 3588, the port forwarding rule is correct.

The inbound firewall rule should be changed to:

Protocol = TCP

Source = Any Address, Any Port.

Destination = Single Address, Single Port 3588

Action = Allow

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Perfect. Thank you.

1 Like