Each port can be used via either tcp or udp. In other words whether youre sending a packet via tcp or udp that packet is sent to an ip address.
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Port forwarding tcp or udp. Most online gaming applications will require you to configure port forwarding on your home router. Put the tcp and udp ports for your game in the corresponding boxes in your router. Open a web browser and navigate to your routers ip address. Port forwarding is a technique that is used to allow external devices access to computers services on private networks. Both protocols build on top of the ip protocol. Put the ip address of your computer or gaming console in the correct box in your router.
The transmission control protocol tcp and the user datagram protocol udp needed only one port for full duplex bidirectional traffic. It does this by mapping an external port to an internal ip address and port. Tcp or transmission control protocol is whats used most commonly. Port range forwarding is similar to port forwarding but is used to forward an entire range of ports. Locate your routers port forwarding section. You should research your selected port number to make sure it isnt.
The stream control transmission protocol sctp and the datagram congestion control protocol dccp also use port numbers. Depending on what is listening itll be expecting requests to be made in either one or the other of these protocols. This isnt usually required but it will help you keep track of your various port forwarding rules. Inbound or start the first port number goes here. Tcp and udp arent the only protocols that work on top of ip. Type or service type this can be tcp udp or both.
Udp or user datagram protocol is less widely used in home applications with one major exception. A certain video game might use ports 3478 through 3480 for example so instead of typing all three into the router as separate port forwards forward that whole range to the computer running that game. The process for forwarding a port is usually. These packets are treated similarly as theyre forwarded from your computer to intermediary routers and on to the destination. If you arent sure of which one to select click both or tcpudp.
Gallery of Port Forwarding Tcp Or Udp
