
I went ahead and tried the port forwarding again but to no avail

I'm attaching a couple more screenshots, hopefully this may shed some light on things. The first is my setting of port forwarding on the Netgear router. The second is the IP Address info that comes up in the Mac OS X Terminal program when you type "ifconfig" The research I've done says to use the first IP address on that line that I've attached. I also checked TCP/IP and it also has 192.168.1.3 as the address.
Just for the heck of it, I'm pasting a list of the options that show up on the left side of the Netgear router setup window. I couldn't find anything for firewall but maybe there's something else I should adjust? UPnP is set to "on"
Setup Wizard
Add WPS Client
Setup
Basic Settings
Wireless Settings
Guest Network
Content Filtering
Logs
Block Sites
Block Services
Schedule
Maintenance
Router Status
Attached Devices
Backup Settings
Set Password
Router Upgrade
Advanced
Wireless Settings
Wireless Repeating Function
Port Forwarding / Port Triggering
WAN Setup
LAN Setup
QoS Setup
Dynamic DNS
Static Routes
Remote Management
UPnP
Traffic Meter