ADSL Internet access through Internet cafes are very common. Internet cafe where I have 50 machines, Internet access via ADSL 512K's fast. Now I combine my experience to talk about multiple computers within a local area network to share an ADSL Internet account realization.
Hardware Connection
ADSL connections in the LAN in two ways:
Method 1: the server to increase a 10 trillion or adaptive 10/100 network card, the ADSL MODEM with the supplied cable to connect this piece of NIC. Then the server should have two network cards, one to connect ADSL MODEM, the other a local area network connection. Just install this computer set up a proxy server (such as: Sygate, Wingate, Windows ICS and other software, you can share Internet access). Sygate's configuration, see end of this article.
Method 2: ADSL MODEM to connect to the hub in the local area network, the method also has two: one is ADSL MODEM to connect the cable directly connected to the hub of the common RJ-45 interface, then need to use cross line, cross-line production method see below. The second method is to use ADSL MODEM to connect the cable directly connected to the hub of the UP-LINK port on (some hubs do not provide UP-LINK port), then do not cross lines, using the MODEM originally attached to the cable ( straight line) can be.
Cross-line production steps are as follows:
Step 1: Using the wrong exit ramp cut the required length of twisted pair, at least 0.6 m, a maximum of 100 meters. Then, use the twisted pair stripping device (actually what can be cut) to remove the twisted pair of skin 2-3 cm. Some twisted-pair cable with a soft nylon rope, twisted pair, if you stripped the skin, I felt that exposed a part of the short and not conducive to production of RJ-45 connector, you can grip twisted pair skin, and then pinch the skin below the nylon line peeled out, you can get a longer bare wire.
Step 2: The next line of action should be allocated. The bare twisted pair of orange on the front line call to their own, brown on the line allocated to its own direction, the green dial to the left side of the line, the blue dial to the right side of the line.
Step 3: Green on the line and the blue of the line in the middle position, while the orange and brown on the line intact on the line, that rely on external position.
Step 4: According to the EIA / TIA 568B provides the best connection method should be:
From left: white orange / orange / white green / blue / white blue / green / white brown / brown;
The other end of the access method should be:
From left: white and green / green / white orange / blue / white blue / orange / white brown / brown.
Have not done the wire friends, if you really could not understand what is meant by cross-line and straight lines, the city can sell networking products to the computer shop, tell them to use as long as five or over unshielded twisted pair to help you do 1,2 and 3,6 of a twisted-pair reversed on the line, they will understand one.
Two methods have their advantages and disadvantages. If only two computers connected to friends, use the first method better. Because only a 10 MB card increases, you can save a hub (two computers connected to network card made by the method of cross-line to make two computers connected with each other, so you can save a hub.) 10 MB network card now only tens of dollars cheaper than the cheaper hub. Therefore more suitable for only two computers to share Internet friends.
However, the shortcomings of this method is to install additional cards need to open the case, are not familiar with the computer for a friend, set up two network cards installed two network cards do not conflict and to ensure the normal operation may be a bit difficult. For the LAN hub connected by a number of computer friends, recommended the second approach. Because the original has been the hub, you can continue to use, without additional card. And can upload virtually any computer in the LAN proxy server software, and more flexible. Another disadvantage is that a cross line.
Set Sygate
Sygate is the most common Internet sharing software, Internet cafe, one of its configuration is very simple. Steps are as follows:
(1) The first is to download the Sygate, I think that Sygate's HomeNetwork 4.0 version of the very good use.
(2) and then installed, along by "Next", remember, when the network card in the binding, if it is above the first access method, to bind the internal network card;
(3) and the internal network card is set, the server (host) and enter the IP address in the internal network card, for example: 192.168.xxx.xxx, (xxx is a range from 0 to 254, you can choose their own a house as a host IP, including, 0 and 255 is reserved as a broadcast system, which can not) then set the subnet mask is, if the LAN client no more than 255, you use 255.255.255.0 on the line. Now, the hosts set up better.
(4) The following work is easy to handle, and is set client. As long as the client specified IP, IP address should be the same segment, subnet mask, and host of the same. Here, we should note that this client confidential based Gateway is the host of the IP address of the gateway, and then fill in the DNS: 202.96.128.68 on the line.
Well, ADSL LAN configuration is like, is not easy ah!