Port forwarding allows remote computers, for example, computers on the Internet, to connect to a specific computer or service within a private local area network (LAN).
In a typical residential network Internet access is obtained through a DSL or cable modem connected to a router or network address translator (NAT). Hosts on the private network are connected to an Ethernet switch or communicate via a wireless LAN. The NAT device's external interface is configured with a public IP address. The computers behind the router, on the other hand, are invisible to hosts on the Internet as they each communicate only with a private IP address.
Lets Start.
Forwarding is based on linksys router but you can still do the same on all other routers.
Questions below please post
First open CMD

Now type
ipconfig

Now at the top you will see this
Code: Select all
Ethernet adapter Local Area Connection:
Connection-specific DNS Suffix . :
Link-local IPv6 Address . . . . . : ***::****:d68d:60be:bb8d%11
IPv4 Address. . . . . . . . . . . : 192.168.*.***
Subnet Mask . . . . . . . . . . . : 255.255.***.*
Default Gateway . . . . . . . . . : 192.168.*.*
now
copy the
DON'T X OUT OF THE CMD YET
Default Gateway192.168.1.1
code
mine is
Default Gateway . . . . . . . . . : 192.168.1.1
so ill go ahead and put 192.168.1.1 into the url bar

Now this should pop up

Username for me is
User: Admin
Password: Admin
It could be the same for you
Just try combinations
User: Admin
Password: Leave blank
ETC ETC
If you know your parents put a user and password on router go ask it from them.
Now.. Once you are in Find applications and gaming

After that you will see some empty boxes
Something like
Application........Start......End......Protocol....IP ADRESS... ENABLE
For the application box put
Sandbox
For the Start put
28785
For end put
28786
For Protocol put
UDP
For Ip address
Now open the CMD again
You see
IPv4 Address. . . . . . . . . . . : 192.168.1.100
Put the 192.168.1.100 code into the box
if the box already has 192.168.1. in there just put the last 3 digets in there
DONT PUT MINE UNLESS ITS THE SAME
For the ENABLE = check mark
------------------------------------
Now Click save..
Now we have to allow it threw the fire wall
Now Open Control Panel
Open System and security
Open Windows firewall
WINDOWS 7
Click advance settings
Others
Click allow program threw firewall
Now if you have windows 7 scroll down
For others
Click on add new
and should ask something about application name
Put Sandbox
Should ask for A Port put 28785
Then if it asks for UDP or TCP put UDP
Then re do the follow
BUT FOR PORT PUT 28786
Done
WINDOWS 7
Click inbound rules
Right click inbound rules
New rule
Click on PORT
Next
Click UDP
In the box put
28785
Allow the connection
Make sure all boxes are checked
Name = Sandbox
Now re do the follow put for the box put 28786
Should be all done now..
Any problems occur please post below