Still brilliant wireless ADSL cat

As early as the popularization of Wired Broadband in residential areas, we all know that with cats, we can connect networks and access broadband. In the wireless age, will our Cute cats leave the stage of history? Of course the answer is NO! In the wireless age, it is still shining brightly, and the "cat" function is more powerful. Let me introduce the new favorite of wireless networks-Wireless ADSL cats.

I. Product of the combination of minutes

What is wireless ADSL cat? Wireless ADSL cat is a product that must be combined for a long time and is a product of high integration of electronic products. It integrates ADSLMODEM and Wireless AP or wireless router functions, it can greatly reduce the space occupation of equipment, and save the trouble of multiple power cords by Using complexity) and cost. Of course, compared with a Broadband Router or a wireless router, the wireless ADSL cat had to be used for China Telecom, China tietong, China Netcom and so on in the ADSL line. Other lines do not support it.

The price of the wireless ADSL cat market is around-yuan, which can meet the needs of the medium and high-class residential buildings and small-sized enterprise bridges and routers market, it also provides an ideal job platform for security, firewall, and high-speed networks. With rich features, it usually includes an integrated 10/100 Mbits Ethernet PHY chip and telephone line interface, supporting Ethernet bridge filtering and advanced DMA functions, supports advanced bridging and routing software and maintenance and control functions, such as embedded Web maintenance and UPnP software.

Carriers usually provide low-grade wireless ADSL cats for users to choose from. For example, ZTE 531B wireless ADSL cat is one of the Domestic Telecom's EHOME package distribution equipment. It integrates four functions: ADSLMODEM, four-port switch, routing, and 54M Wireless AP, integrate the functions that originally required four types of equipment into one device.

The device provides a downstream transmission rate of 8 Mbps and 1 Mbps at full speed. In G. lite mode, the device provides a downstream transmission rate of 1.5 Mbps and a downstream transmission rate of kbps. Supports HPAuto-MDIX detection and automatically adapts to cross-network cables. Supports DHCP server functions and dynamically allocates IP addresses. Supports NAT functions to allow LAN users to access the Internet at the same time and supports TFTP promotion.

Ii. mainstream wireless ADSL cats

In addition, mainstream wireless ADSL cats support ADSL2 + and provide download speeds up to 24 Mbps.

Taking China's wireless ADSL cat as an example, this cat integrates ADSL cat + wireless route + wired route + Wireless AP, and supports ADSL2 + and built-in firewall, provides four Ethernet interfaces for PCs, STB, IAD, and EPHONE. You can use only one device to connect multiple wireless wired computers to the Internet at the same time. Supports NAT/firewall skills and TR069, with sensitive network configuration and QoS policies, parental control, and data, communication, and entertainment services, suitable for home and office users with multiple Laptops and Desktops.

TP-LINK wireless ADSL2 + router TD-W8910G54M is also such a product, its set ASDL access, wired/wireless network connection in one, allow multiple PCs in the enterprise, office, or home to share one ADSL line and one InternetISP account to access the Internet. The four built-in switch ports are simple and you are outside the wireless network, connect Four computers directly in wired mode.

The maximum downlink speed is 24 Mbps, and the maximum downlink speed is 1 Mbps. Provides maintenance for DHCP servers, virtual servers, DMZ hosts, static route tables, DDNS, and port ing. It also provides a full Chinese Web configuration interface, user-friendly interface, and easy-to-use configuration, supporting Software promotion is a product that allows you to experience both wired and wireless surfing.

3. Security of Wireless User Groups

Wireless ADSL cat marks a future direction for the development of household network equipment, while bringing simplicity to users, security questions are increasingly exposed. More users may find that unauthorized users in the wireless signal coverage area can also decide whether to share the Internet or access the LAN. How should we guard against this?

I think the necessary security configuration can be implemented from the following points.

First, if you want to prevent unauthorized users from quietly accessing the wireless ADSL cat, do not broadcast the SSID. SSIDServiceSetIdentifier) can also be written as ESSID, used to distinguish between different networks, can have a maximum of 32 characters, wireless network card configured with a different SSID can enter a different network, the SSID is like the Working Group title of a wired network.

By default, the wireless ADSL cat has enabled the wireless function and broadcasts the SSID number to determine the wireless signal, in this way, any computer with a wireless network adapter within the range of its wireless signal coverage can enter the network without any configuration. Therefore, to obtain the basic security of the wireless network, you need to remove the check before the SSID is permitted to broadcast. After the SSID is not broadcast, you must enter the correct SSID number to access the network composed of the wireless ADSL cat.

In addition, careful users will also find that the factory SSID titles of wireless ADSL cats of the same model and manufacturer are the same. In this way, users with a little understanding can also enter the SSID title of the factory's default from multiple manufacturers on their computers, try it one by one, and enter your network at will. So, in the correction do not forget to change this title, such as the TP-LINK wireless ADSL cat acquiesce "TP-LINK" to other easily recorded title, such as "666888 ", you can also make regular corrections when necessary.

Iv. Further Security Configuration

During the configuration of wireless ADSL cat, the WEB interface and its gateway address are all implemented, while the same model and even the factory wireless ADSL Cat's factory IP address gateway are all the same, for example, common 192.168.1.1 or 192.168.0.1. In this way, many users who have some understanding can quietly decide that the address is connected to your network. Therefore, you can access the WAN or NAT configuration options of the wireless ADSL cat, modify it to a non-factory default IP address, such as 192.168.1.2 or 192.168.0.3.

The same is true for login usernames and passwords. The factory usernames and passwords of wireless ADSL cats of the same model and manufacturer are the same, you can also enter the username and password modification option of the wireless ADSL cat, and change it to your easy-to-remember username or password.

In addition, the security protection of wireless ADSL cats can be more "automatic", for example, WEP/WPA encryption or MAC address filtering to further improve security.

The MAC address filtering principles include forwarding and blocking. You can modify the Policy button to correct the rules. The MAC address filtering principle is forwarding, that is, all MAC frames except the MAC frames listed in the entries will be blocked, and all other MAC frames will be forwarded; on the contrary, under the blocking policy, all MAC frames listed in the entries will be forwarded, and other MAC frames will be blocked. Taking blocking as an example, you can record the MAC address of your existing computer network card and set the forwarding principle to allow, in this way, other computers cannot access the network composed of the wireless ADSL cat.

In terms of Authentication Encryption, you can select WPA, WPA2, and MixedWPA2/WPA according to the NIC configuration. All of them must experience the Security type of Radius server authentication. Enter the WPA key in the WPA pre-shared key, and specify the update cycle of the key used for broadcast and multicast in the WPA group re-Authentication slot, select one of Automatic, TKIP, or AES in the WPA encryption mode as needed. Save the settings.