The POP service listens on TCP port number 110. The second service is usually either the Post Office Protocol (POP) or the Internet Message Access Protocol (IMAP) which is used by e-mail client applications on user’s personal computers to fetch (recuperare) email messages from the server. The SMTP service application usually listens on TCP port 25 for incoming requests. This is accomplished with the Simple Mail Transfer Protocol (SMTP). The first service is used to transport email to and from other servers. A server used for sending and receiving email generally needs two services. In the context of the Internet Protocol, a port is associated with an IP address of the host, as well as the type of protocol used for communication.Īn example for the use of ports is the Internet mail system.
The purpose of ports is to uniquely identify different applications or processes running on a single computer and thereby enable them to share a single physical connection to a packet-switched network like the Internet.
#NETWORKVIEW ISMINE SOFTWARE#
In computer networking, a port is an application-specific or process-specific software construct serving as a communications endpoint in a computer’s host operating system. PC2(IP Private) | Router Firewall (NAT) assign one IP Public Internet That means only one public addresses is needed for hundreds or even thousands of users. When NAT is used in this way, all users inside the private network access the Internet have the same public IP address when they use the Internet. From the perspective of the workstation, it appears that communication is directly with the site on the Internet. From the perspective of the resource on the Internet, it is sending information to the address of the firewall.
It then makes the same request to the Internet using its own public address, and returns the response from the Internet resource to the computer inside the private network. The firewall sees the request from the computer with the internal IP. Routers within the network recognize that the request is not for a resource inside the network, so they send the request to the firewall. This is where NAT (Network Address Translation) comes into play.Ī workstation inside a network makes a request to a computer on the Internet. However, to access resources outside the network, like the Internet, these computers have to have a public address in order for responses to their requests to return to them. Routers inside the private network can route traffic between private addresses with no trouble. The private addressing scheme works well for computers that only have to access resources inside the network, like workstations needing access to file servers and printers.
#NETWORKVIEW ISMINE PC#
– Static, you can manually assign the IP number to your PC – Dynamic, the router assigns automatically a different IP number to every PC connected After that Windows7 assigns a dynamic IP adress to every PC connected on the network.Īn IP adress is a adress that uniquely identifies that individual host maschine inside the network. If you use Windows7 is very simple setup a Home Network, go to Start button> ‘Control Panel’ and typing homegroup in the search box, and then clicking HomeGroup. The router is a networking device that forwards data packets between computer networks.
To create a network we need 2 or more PC connected with a Router using a LAN cable.
#NETWORKVIEW ISMINE HOW TO#
In this article I discuss how to create a simple multiplayer game using a Windows Home Network and 2 PC.įirst we need some basic concept about Network and Networking. Unit圓D Tutorials – Multiplayer Introduction
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