No you don't
Yes. Port forwarding is typically done in the router. However, you cannot forward the same port to more than one computer on the network.
Many modern programs have a feature called NAT negotiation (or NAT traversal). Normally, if Client A wishes to establish a connection to Client B, but Client B has not initiated that connection then the firewall/router/NAT will not typically know what internal computer on the network to send the data to, port forwarding says 'If the NAT/Router recieves data on port X then direct it to computer Y on the network'. NAT negotiation allows Client B to tell his router 'If you recieve a connection on port X, then forward it to my computer'. It is similar to port-forwarding but it is automatic and only in effect while Client B has NAT negotiation turned on.
You have to port forward, or the server is not up in your terminal... I can only help on MACS for port forwarding... can ANYONE access it besides you from YOUR computer? Also, your IP could have changed (if you port forwarded, you have to do it again)and.. What is the error message on it?How to Port Forward on a MacGo to 192.168.1.1 which is your router's page. You will have to type a username and password. The username is probably ADMIN. You then have to open NETWORK PREFERENCES and look at the IP It should be 192.168.1.???. Click on PORT FORWARD or GAMING in your menu on the router page... It should say Port Forward... Type in the IP that you saw in network prefrences (the last 2 or 3 numbers) in the end of the port forward thing. Make the ports 25565. Save. Go to ipchicken.com The IP that shows up there is the one you type in in your Minecraft Server Connect..Hope This Helps!
Computer network.
Port forwarding
Enter "localhost" in your webbrowser. DO NOT ENTER http! After that, click port forward and enter 25565 to port forward. Then press OK/Done/etc. That's what it is like for most computer routers.
You will need to port forward your xbox. You can do this by going on a website called port forward. From there, you should then choose your router and what you want to port forward, in your case, Xbox live. After, you will see a guide, follow this and you are all set.
You need to get a 20 port Ethernet Switch. (or "link" two 10-port or "link" four 5-port). Then connect each computer to the switch. They can all talk to each other.
By the port number or the port address
You can, you will need port fowarding, as long as your modem supports NAT/PMP or UPnP. On a Mac, it is very easy. Just download Port Map and run it, adding the port "25565". On a Windows Computer, however, you need to manually port forward your network. You need to go to your host IP(Like 192.168.0.1 or 10.10.0.1) and login as admin. Go to the Ports Section and add a Public Port, "25565", and your server is done port forwarding. Last thing is to, of course, find out what is your real IP.
NIC (Network Interface Card)
Your best bet would be to install a network card. If that works, just disable the onboard network port in device manager.