What is the IP address path for the traffic:<br><br>I'm not very good at this but does your network look something like this?<br><br>Public_IP_Address ==> Modem ==> 192.168.0.* ==> Upstairs Router ==> 192.168.1.*
==> Linux_machine_IP<br><br>You may have multiple NAT devices changing the IP address and you would have to configure each one to forward the traffic.<br><br>You can also see what ports are opened using Shields-Up to scan every port (make sure you own the network device you are testing)
<br><br><a href="https://www.grc.com/x/ne.dll?bh0bkyd2">https://www.grc.com/x/ne.dll?bh0bkyd2</a><br><br>-- <br>Jeff Rasmussen<br>GPG public key 0x9686C12F