Hello all,
please help me about port forwarding,
First i want to know about port forward and how to implement it.
Thanks
what is port forward?
-
jacobwallace965
- Posts: 10
- Joined: Thu Jan 22, 2015 4:34 pm
Re: what is port forward?
Ports are like mail sorting tubes inside our computer. When a data packet comes in for our PC, the operating system has a look at the port number it’s destined for. Each port corresponds to a different application, and there are 65,536 ports in total available to use. Some of these ports (the first 1,024) are fixed – a pre-determined standard that helps core applications to communicate across the globe.
Port forwarding is that redirects a communication request to from one address to another. If the computer signal can find its way into your computer a few milliseconds quicker, it will add up to be dramatic speed boosts for our game or our downloading.
Port forwarding is required when a machine on the Internet needs to initiate a connection to a machine that's behind a firewall or NAT router.
But if a packet appears on the external interface, and it's not a part of such a connection, the router needs to know what to do with it. By default, it will reject it. But if forwarding is configured for the port, that tells it what internal machine to send it to.
Put another way: we need port forwarding if we want to run a server behind the NAT firewall/router, we don't need it if we're just running a client.
How to configure port forward
Open up the router configuration page to the port forwarding section – this will likely be under security settings. They may be an option to select “Service” for predefined ports, Give your rule an arbitrary name – like “dedicated” – then type in the port range that you wish to forward. Select both the UDP and TCP protocols if we’re unsure, and then fill in the address of the machine we want it forwarded to. Note that this isn’t going to work if you’re constantly resetting your router; machines may later be assigned a different IP address, and the port forwarding table rules will break.
Port forwarding is that redirects a communication request to from one address to another. If the computer signal can find its way into your computer a few milliseconds quicker, it will add up to be dramatic speed boosts for our game or our downloading.
Port forwarding is required when a machine on the Internet needs to initiate a connection to a machine that's behind a firewall or NAT router.
But if a packet appears on the external interface, and it's not a part of such a connection, the router needs to know what to do with it. By default, it will reject it. But if forwarding is configured for the port, that tells it what internal machine to send it to.
Put another way: we need port forwarding if we want to run a server behind the NAT firewall/router, we don't need it if we're just running a client.
How to configure port forward
Open up the router configuration page to the port forwarding section – this will likely be under security settings. They may be an option to select “Service” for predefined ports, Give your rule an arbitrary name – like “dedicated” – then type in the port range that you wish to forward. Select both the UDP and TCP protocols if we’re unsure, and then fill in the address of the machine we want it forwarded to. Note that this isn’t going to work if you’re constantly resetting your router; machines may later be assigned a different IP address, and the port forwarding table rules will break.
-
greennevaeh
- Posts: 7
- Joined: Thu Jan 22, 2015 4:18 pm
Re: what is port forward?
Port Forwarding is the technique of receiving packets destined for a specific TCP of UDP port and machine, and 'forwards' them to a different port and/or machine. They connect to a port on a machine when in actually fact the packets are being redirected elsewhere.
-
lilymerilaht
- Posts: 9
- Joined: Wed Jan 21, 2015 4:34 pm
Re: what is port forward?
Web servers, FTP servers, e-mail servers, and other specialised Internet applications can all be set up using port forwarding on your network. The router will transfer these requests to the proper computer when users send this type of request to your network via the Internet.
-
anthonywilliam691
- Posts: 15
- Joined: Wed Jan 21, 2015 5:24 pm
Re: what is port forward?
Port forwarding, also known as port mapping, is a network address translation technique that redirects a communication request from one address and port number combination to another while the packets are passing through a network gateway, such as a router or firewall.
