Broadband "road" connected to the world-Guide to the purchase of broadband routers (resend/excerpt)

A Broadband Router is one of the best solutions for shared bandwidth connections. Compared with the proxy server, the Broadband Router has four advantages: first, no maintenance is required. Once the configuration is successful, no management is required; second, the operation is stable; third, no computer is required as the proxy server, this can effectively save energy and reduce costs. Fourth, some broadband routers also provide several Ethernet interfaces that can be used to directly connect to computers. Therefore, broadband routers play an important role in Soho, home, And wangba, and become the first device for Internet shared access with ease of use, ease of management, and zero maintenance.

<Home and SoHo Broadband Router selection>

With the decrease in bandwidth costs and the increasing number of home computers, broadband routers have become the main way for Internet Connection Sharing. Home or Sohu broadband routers are favored by users with rich functions and low prices. How should we choose a wide range of products?

1. Purchase principles

When purchasing a home or Soho Broadband Router, follow the following basic principles:

Sufficient principles: For home or SOHO users, selecting a Broadband Router is the same as choosing a computer. The principle of "adequate use, use, and good use" should be followed. In terms of performance, because Soho or home users have a small number of computers, almost any Broadband Router is competent for the performance requirements of routers. In terms of stability, soho or home users do not have any key applications. Therefore, occasional crashes, disconnections, or reboots are not a big problem. In terms of functions, as long as they can meet user needs, ordinary families can choose products with simple functions. Of course, VPN functions are very useful for SOHO users. In short, no matter whether the performance or function is enough, it is a waste of extra resources.

Cheap Pricing: The same is a Broadband Router, but the prices of different products are different. In fact, the key components and technologies of most products are basically the same. Therefore, their performance and functions are not very different, even from OEM products of the same factory, the difference is often only in the visibility of the OEM. Therefore, for ordinary household and SOHO users, they can choose well-known products in mainland China, which can both get cheap prices and enjoy after-sales services.

Dummies Principle: Home users and SOHO users cannot hire full-time network administrators. Therefore, the silly configuration and management of network devices are crucial. In three aspects, the first is the configuration of dummies, requiring the product to have a full Chinese configuration interface and a detailed Chinese manual, full Chinese configuration thinking, this allows you to configure various Internet access methods step by step. Second, the connection is silly, requiring all ports to use smart ports to automatically determine the connection port type; the third is the dummies of recovery. you can press a button to restore the default factory value of the router. You don't have to worry about configuration errors. When the system fails or crashes, simply turn off and turn on the power, the normal operation of the router can be restored to ensure that any user can easily cope with unpredictable faults.

2. functions that should be available

The home or Soho Broadband Router is dedicated to Internet shared access for ADSL, HFCs, or residential bandwidth. Generally, it has only one wide area network port and one LAN port. Most of the functions are Network Address Translation (NAT, network Address Post translation. Of course, there are also some Soho routers with rich functions, but the price is usually above 1200. As a home or Soho Broadband Router, it usually has the following functions:

Network Address Translation: regardless of the method used to access the Internet, users usually have only one valid IP address. Therefore, to implement internal Internet access, you must use Network Address Translation (NAT) to convert an internal IP address to a valid IP address. In addition, NAT technology can also achieve Intranet and Internet isolation, so that Internet hosts cannot directly access internal computers, thus providing certain network security protection.

DHCP service: each computer of a home or SOHO user must have an IP address. Otherwise, it cannot be found in the network. The DHCP service can provide IP addresses for internal network IP addresses to manage the IP addresses of the inner dancer Guoluo and provide IP address information for each computer without manual configuration, in this way, network access and Internet sharing can be achieved, and IP address conflicts or network communication failures caused by incorrect typing are avoided.

Automatic dialing: currently, most users choose the ADSL virtual dialing access method. The automatic dialing function enables a network user to automatically dial up when sending an Internet access request, establish an Internet connection, and automatically disconnect after the user terminates Internet access. This function is very advantageous for users who use the pay-as-you-go billing method. It can effectively reduce the access time and save Internet access fees.

Firewall: firewalls generally include LAN firewalls and Wan firewalls. The LAN Firewall uses IP address restrictions or MAC Address binding to prevent some computers from accessing the Internet. The Wan firewall usually sets different filtering rules to filter abnormal information packets from the Internet to protect computers on the network from malicious attacks. For home and SOHO users, Wan firewall is more important. The Wan firewall can effectively prevent loss of sensitive data and protect trade secrets and security.

VPN connection: when working at home or on a business trip, you often need to connect to the home or company network to obtain or transmit some data. With the VPN function provided by the Broadband Router, you can create a dedicated channel on the Internet to connect to the VPN Server in the LAN at a low price, and access the data in the server. VPN is especially important for SOHO users.

URL filtering: the function of URL filtering is similar to "screens". Users can access illegal or unhealthy web pages, which ensures healthy growth of children, this effectively avoids unnecessary troubles.

Support for virtual servers: with Nat, you can access the Internet through an internal network, but you cannot access the Intranet server or host through the Internet. Because each network server uses a fixed port, port ing can be used to forward requests from the Internet to different servers or hosts in the LAN, allows you to access servers in the network and to remotely access and control computers in the network.

Dynamic DNS: a dynamic IP address is obtained through Internet access such as ADSL, which is a virtual dial-up. That is to say, each time you connect to the Internet, the IP address you get is different. This is nothing for Internet access, but it is a problem to provide network services for the Internet. With the help of the DNS system, no matter how the network IP address changes, it can be resolved to a fixed domain name, so that it can be accessed by Internet users.

3. issues that should be paid attention to during the purchase

Number of lanports; advanced routing functions; configuration interface

<Selection of broadband routers for Internet cafes>

For Internet cafes, prices are often not the most important factor. stability, reliability, and strong performance are what Internet cafe owners should pay attention to most. The reason is simple. No Internet cafe wants to have problems with the network in three days. The number of computers is 30 ~ 300 small-and medium-sized networks (enterprises) should also adopt Internet cafe broadband routers.

1. Purchase principles

Strong performance: Because all applications in Internet cafes cannot be connected to the Internet, the concurrency traffic is very large. In addition, both online games, software downloads, video calls, and on-demand videos will produce a large amount of multimedia data transmission. Therefore, the performance of the Broadband Router is required to be very powerful. Otherwise, the server will crash due to heavy load, or the response time will be too long, affecting the normal use of users.

Complete Functions: Because the Internet cafe user base is very complex, almost all Internet applications are involved. Simple browsing, chatting, sending and receiving emails, on-demand video, file transmission, online games, VPN connections, secure transmission, and other advanced applications. Therefore, vrouters are required to provide a wide range of functions to meet the needs of different users.

Stable and reliable: Because the Internet cafe has a long and continuous business time, it is necessary to ensure the stable operation of the equipment. In addition, occasional Internet faults can be tolerated by users. However, if frequent disconnection or disconnection occurs, users may be "looking for a different location. In fact, stability and performance are associated to some extent. Only a vro with strong performance can work stably for a long time without stopping or dropping the cables.

Low Price: Low-price products will become our first choice to meet the performance and stability requirements.

Easy to manage(Omitted)

2. Main Parameters

Wan port; CPU clock speed (determines its performance); cache capacity (determines the number of connected computers); features; smart ports (mostly omitted)

3. issues that should be paid attention to during the purchase

CPU clock speed and type; data throughput (available for qcheck and other software tests); stable and reliable (mostly omitted)

Postscript: Unfortunately, after editing and publishing last night, the cookie expired. When editing this evening, I found that there was a problem with the submission, so I finally extracted the main content. This article is indeed good. If the former boss sees it, it may not fail. The boss (guest and family) applied for a K access speed ADSL and opened an internet cafe named "e "in Shenzhen. Although he worked very hard, however, because it was really stingy (not willing to buy equipment), it finally led to a very bad reputation in that street and had to rush.

Author: Liu Xiaohui, Feng xiangjun, on the computer newspaper-Issue 12, 2004.3.29