The scheme of Net bar network without disk in hundred machines

100 Machine Internet Café network networking program how to do?

For the 100-machine Internet Café network needs to use a server to guide 50 or so workstations set up dedicated to the Internet surfing and film-oriented service area; Another server leads another 50 workstations to set up a dedicated gaming area, in which all PCs are diskless startup modes.

In the Internet access, you can choose to access through two ADSL lines, each line as a two-part workstation extranet access to exports. For switches on the trunk line, you can use a network-management switch with two gigabit modules, which can be divided into 802.1Q based VLANs and Port based VLANs, which must be set up in a real-world application. 24-Port normal switches are available for switches with each workgroup.

For the whole network structure, the author thinks the performance of the whole system is stable and reliable, the upgrade space is big and the Internet surfing and network games are taken into account.

The main network equipment: 2 ADSL Modem, 2 ordinary Soho broadband router or dual-Wan broadband router, 1 can network management Gigabit Switch, 5 24 general switch.

The networking method of 100-machine Net-Bar networking scheme

1, optical fiber directly to the Internet café, and then through a fiber-optic transceiver to convert light signals into 10m/100m electrical signals. Access to the use of optical fiber, fast, good stability, low barrier rate, anti-interference characteristics of the strong.

2, with a router as a LAN gateway, this router in the function and performance must meet the needs of Internet cafes network, because it is dedicated to routing forwarding, address mapping hardware equipment, in the efficiency of the computer than the mainframe, and has a very excellent stability.

This router requires a dual Ethernet port: One is connected to the optical transceiver, the other is connected to the switch, and the connecting media is a network cable. Router as a gateway, strong routing and forwarding capability, good stability, with high security, you can ensure that the LAN internal machine security online without worries, and can maintain long-term on-line.

3. Use a switch for intranet interconnection. Compared with the shared bus bandwidth of a hub, the switch uses exclusive bandwidth, which is far more functional and performance than the hub. The switch can greatly improve the network utilization, reduce the internal conflict of the LAN and improve the speed of Internet. Especially when more machines are running at the same time, the switch will play a greater role.

Related settings in the local area network

The establishment of the local area network is mainly the software setup problem, here for you to introduce. First, the Internet cafes also according to the design of the network, switches, routers, the distribution of a good network, the formation of the network, need to note the following points.

Correct use of "bridge" devices

"Bridge" equipment is used in the same network segment of the network equipment, if the correct use of good bridge equipment, will cause the server to prompt the current network segment number should be the other side of the network segment number. Therefore, it is important to correctly differentiate between "routing" devices and "bridge" devices in setting network parameters.

Reasonable set up switch

Optical fiber access to the switch, better performance, compatibility, in addition to the Internet café in the various switches to be compatible, but also to ensure that the entire network of Internet cafes compatible and stable, effectively solve the network system stability and reliability and performance of the conflict, while shielding the virus and illegal intrusion attacks.

This article recommends that the port of the switch and the speed and duplex of the NIC be set to be consistent, and that the speed becomes extremely slow if the inconsistency can result in a large amount of traffic load data transfer. Then is set up TCP/IP properties, if the machine is more Internet cafes, it is not possible to set each machine IP address, so the use of automatic access to IP. Next to configure the broadband router, the Internet Café Router is very important equipment, once the device router has a problem, it will cause the entire Internet network paralysis.

In the IE Address bar, enter the broadband router's web configuration IP address (winipcfg in the gateway address), and then enter the username and password, the initial value of admin, access to the broadband router configuration interface, select the "Setup Wizard" step-by-step down settings, encountered "PPPoE" option, Then enter the ADSL dial-up Internet "username (user name)" and "Password (Password)", all the Way "next", you can share broadband router Internet.

This is only to meet the basic functions of the Internet, for Internet cafes network, more to ensure the stability of the network health. All you need to set up more advanced features.

Advanced feature settings for routers

The router is a very important equipment in the network environment, how to choose the appropriate router in the different network application environment, often becomes the important factor that decides the network construction success or failure. When the Internet Bar network uses the way of optical fiber, then need to use the fiber-optic router, so as to ensure that fiber access to Internet cafes.

Mac function of router function

If the use of a MAC address function of the broadband router, the network card on the MAC address to the router, to facilitate the server in the access to verify the MAC address, access to broadband access certification. MAC address control mainly has two aspects of the function settings.

1, the connection control settings. It can be used to set up which computers are allowed or forbidden to access the router or the Internet;

2, MAC address and IP address binding. Binding is to prevent users from arbitrarily changing the IP address, or the user can use a MAC address each time to obtain a different IP address, may cause an APR attack Internet network.

Dynamic Host Configuration Protocol (DHCP) features for router functionality

The Dynamic Host Configuration Protocol (dhcp,dynamic host Configuration Protocol) is a protocol that dynamically assigns and configures IP addresses to clients on a TCP/IP network. The configuration parameters that DHCP provides to client computers in a TCP/IP network consist of two basic parts: one is to transfer the dedicated configuration information to the client, and the other is the IP address assigned to the client.

DHCP works based on client/server mode. The use of DHCP server, the network for dynamic allocation of IP address will be unified management, solve the problem of address conflicts, network administrators can avoid manually set and assign IP address trivia. DHCP can automatically assign IP addresses to client workstations that are logged on to a TCP/IP network.

Virtual Private Network (VPN) features for router functions

Virtual Private network, a new network technology, provides us with a way of securely connecting remote access to the internal private network of an enterprise through a public network. We know that a network connection usually consists of three parts: the client, the transport media, and the server.

VPNs are also made up of these three parts, but the VPN connection uses tunnels as a transport channel. VPN can use Internet public network to establish a proprietary private network, a secure VPN including tunneling, encryption, authentication, access control and audit technology.

The DMZ function of router function

The DMZ is a buffer between the unsecured system and the security system in order to resolve the problem that the external network cannot access the internal network server after the firewall is installed. You can place some of the server facilities that must be exposed in this small network area, such as FTP servers and forums. At the same time can more effectively protect the internal network, because he is more than the general firewall scheme a checkpoint.

The main role of the DMZ is to reduce the risk of providing services for untrusted customers. The DMZ separates public hosts and local network facilities. Most broadband routers can only choose a single PC to open the DMZ function, but also some full-featured broadband routers can set up multiple PCs to provide the DMZ function.

The firewall function of router function

A firewall can scan the network data that flows through it, filtering out some of the attack information. Firewalls can also turn off unused ports to prevent hackers from attacking. It also prevents specific ports from leaking information, and prevents access from special sites. For the Internet Café Network, the firewall is very important, all in the purchase of routers to pay attention to the firewall function of the router.

There are many design of Internet Café Network, this article only applies to the size of small internet cafes, there are some other need to pay attention to the details of the readers need attention.