1. proxy server accesses the Internet.
Many Internet cafes, small businesses, institutions and other users apply for one or more Internet access lines at ISP. By setting up a special proxy server, installing the corresponding proxy or gateway software on the proxy server, assigning the IP address to the client DHCP or specifying a fixed IP address, the Internet access service is provided for users in the local area network. We must add port mapping to the proxy server to improve the download speed of BT.
● If your server is connected to the network that comes with Windows, the setup is very simple. Let's take the Internet connection of Windows 2000 as an example.
Right-click the connection you like, select Properties, and then press the Settings button on the Favorites page to open the Settings window. Then select the Add button on the service page to open the settings window, as shown in figure 1.
Figure 1
On this page, you can fill in the name (such as BT) at will, fill in 688 1 in the "service port number", check TCP, fill in the name or IP address of the machine you used to download BT in the "server computer name or address on the private network", and then press "OK" to save. Add the mappings of ports 6882-6889 in the same way, and point them all to the computer you started specifying.
● Use special port mapping software.
You can use: PortMap, WinRoute Pro, PortTunnel and other software. Take PortMap V 1.6 as an example. PortMap V 1.6 is a small and portable application with very simple setup. If you are not used to using other port mapping tools, try it. Setting method is: run PortMap V 1.6, and click Add to open the Add/Modify Port Mapping window. As shown in figure 2.
Figure 2
Enter any name (such as BTPort) in the name, just fill in the IP address of the client that you want to use for BT download in the input IP column (or select any IP to add the IP of the whole network segment used by the client), enter 688 1 in the input port column and 68 1 as yourself in the output IP column. This completes the setup. After confirmation, you can start the project you just set. Then in the same way, add ports 688 1-6889 downloaded by BT in turn and start it.
Friends who don't know the IP address of their proxy server, if the proxy server is Windows 98, can run Winipcfg on the server to display their public IP; if it is Windows 2000/XP, they can find the public IP obtained by their server by running Ipconfig/all.
Note: Please set up or install WinRoute Pro, PortTunnel and PortMap software on the proxy server for NAT setting or port mapping. I often hear some friends ask, I installed these softwares on the machine, and the settings are correct. Why is the download speed of BT still as slow? In fact, it is all operated on the client side, of course, it is not acceptable.
2. Routing modem dial-up Internet access
Many users dial-up the Internet through routing modems. Many clients and ASAL modems are connected to switches or hubs, or a machine is directly connected to the LAN port of ADSL modem through a network card with a crossover cable. ADSL modems generally have built-in PPPOE dialing function. After the correct setting, the modem can automatically dial to obtain the IP address of the public network when it is powered on (the setting of ADSL modem is not detailed here, please refer to relevant materials). The IP address obtained by the client is a reserved address on iNet, in which ADSL modems follow three forms: 10.x.x, 172. 16.x.x to 172.3 1.x.x and/.
ADSL Mdoem has built-in NAT function to realize multi-computer access to the Internet. Generally, NAT rules are set according to conservative NAPT rules. In order to improve the download speed of BT, it is necessary to set the rules of NAT so that the external network machine can directly connect to the internal network machine.
For example, after entering the setting page of ADSL modem, select "Service" page, then select "NAT Rule Entry" in the drop-down box of "NAT Option", and press "Add" button in the "NAT Rule Setting" page to open the "NAT Rule-Add" window.
On this page, select BIMAP for the rule flavor, 1 for the rule ID, ALL for the IP name, and the machine IP you used for BT download for the local address, and then "submit" to complete the rule addition. Note that if there is a NAT rule with the rule number 1 in your ADSL modem, you must delete it first, and then add the same rule, only the rule ID is no longer 1. In this way, we added a new BIMAP NAT rule to the ADSL modem of the intranet machine with IP address192.168.1.3, so that it can be mapped to the Internet transparently (Figure 3).
Figure 3
After saving the settings, the BT download speed of the machine with IP address192.168.1.3 can basically reach the limit download speed of the Modem. Other machines can also refer to the settings, so I won't repeat them here.
After the above settings, your computer is also "running as fast as a fly" when downloading BT!
Word hint
Port mapping: It is similar to the concept of "function" in mathematics, that is, the gateway port of * * * Internet server is mapped to a client port in LAN, so that intranet users can let external users access their own machines through port mapping.
NAT- Network Address Translator: It is called port mapping (also called network address translation) for short, and it realizes the mutual translation of IP addresses in internal network and public network. Its function is to let the server forward the request of the specified port to the specified IP so that other machines can respond to these requests. When the internal network sends to the external network, it is no longer to randomly assign ports like other gateway services, but to use the ports specified above.
Bimap rules: Bimap rules can be used to provide external network access for LAN devices. In this way, a PC(IP) in the local area network can be mapped to the IP of the public network completely transparently, so that many complex applications such as MSN voice and online games can run normally on this PC.
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