dial-up Internet access
To facilitate the management and maintenance of the ADSL Modem device during Internet access in the future, many manufacturers often set the "80" port of the ADSL Modem device to its backend Management port, however, if an attacker or hacker knows the default IP address of the ADSL Modem, the administrator password of the ADSL device may
ADSL is a very common broadband access method. However, since one user has only one ADSL account, how can we achieve multi-user sharing of ADSL? Here we will introduce the implementation method. ADSL is an affordable broadband access solution. Currently, it is billed on a monthly basis. if a user uses an account to access the Internet, it will be a bit uneconomical. How can one ADSL user access the Internet? The following are some experiences.
Sharing principle: in view of the current mainstream
There are a variety of wireless Internet access methods. We often see wireless network interfaces and wireless network interfaces for wireless Internet access. For today's wireless trends, the wireless access of infrared seems a little retro. It cannot be said that it has been out of the stage, at least in terms of choice, it has gradually been forgotten by everyone. Next we will introduce a wireless Internet access solution through infrared rays. This method is based on GPRS traffic to access t
development, WIMAX is currently working on network structure standards and business application requirements. The standard is the creator of technical standards, and WIMAX is the promoter of technology and industrial chain.
WiMAX has made an important contribution to IEEE consistency standards. With the development of 802.16 standardization,
We have learned about Wimax wireless technology before Wi-Fi wireless technology. This article will introduce the Wi-Fi wireless technology. Wi-Fi wireless technology is a LAN, which has some limitations over Wimax. For more information, see the following section.
Overview of Wi-Fi wireless technology
WLAN standards mainly include 802.11b, 802.11a, and 802.11g. Currently, WiFiWirelessFidelity, a wireless f
The coexistence of wired and wireless networks has a wonderful effect on the combination of wired and wireless networks. It can be cleverly designed for different situations to fulfill the WiMax wireless standard prospects. Combine the advantages of the two to make the network ubiquitous.
With the maturity of the broadband technology and the decrease of the market application threshold, the ADSL Broadband business has gradually gained the recognition
There are times when we may encounter a problem with installing the two NS version at the same time, such as I study wimax/802.16, because the protocol is too complex to use the WiMAX patch of Chang Gung University and NIST. Chang Gung University's WiMAX patch was developed under ns2 , NIST's WiMAX patch can be used o
routers on this side of the WAN port are plugged in, but not connected to the modem, LAN access is not connected to the wall modules.
2, network cable connectivity failure, mainly the quality of the network cable is poor, or the line sequence is not correct. Modem access to the router, usually the modem distance from the router is not far, as long as the line s
-distance workAlthough Wireless WiFi is far from working, the actual working distance of 802.11b can reach more than 100 meters in the case of complete network construction, in addition, it solves the problem of data correction and error codes during high-speed mobile. The switchover and security authentication between Wi-Fi devices and devices, devices and base stations are well solved.
Development and Future of WiFi
In the past two years, the number of wireless APS has increased rapidly, and t
difficulty in understanding SRP is in the case of a multifunctional class, which is not easy to understand the contradiction between versatility and single change. Let's take a look at a modem class example, modem has 4 functions: dial-up, hang up, send data, receive data:
class Modem { public void Dial(string aPno) {…} public void Hangup() {…} p
At present, ADSL permeate every corner of our lives, whether it is enterprises, Internet cafes, or home users using ADSL to access the Internet, usually, an ADSL line can only support one computer to access the Internet, however, after using a networking device, you can implement an ADSL line to support Internet access shared by multiple computers. Generally, devices that implement the shared networking of ADSL include ADSL Modem, Broadband Router, an
wireless router, we have to do the physical connection operations related to the wireless router:
First of all, the ADSL modem device is connected to the WAN port of the wireless router, and then the common twisted pair connects the LAN port of the wireless router with the normal workstation. After completing the physical connection operation, we go to the Windows system interface of the normal workstation and open the system's TCP/IP property Setti
Shanghai Bell Company's Cablelink Cable modem system provides high-speed asymmetric data communication services to users through the fiber coaxial hybrid network. The asymmetry of its connections requires high-speed communications in one direction, such as network browsing, Internet file transfer, and ideally in the opposite direction with a lower-rate delivery service. The TDMA access method used in Cablelink 2000 system can make the system more flex
ADSL is an affordable broadband access solution. Currently, it is billed in monthly subscription mode. If a user uses an account to access the Internet, it will be a bit uneconomical. How can one ADSL user access the Internet? The following are some experiences. Sharing principle In view of the current mainstream Ethernet interfaces, the external ADSL Modem has built-in routers and routing functions, and also has a large-capacity ROM chip (includi
From: http://topic.csdn.net/t/20030528/15/1845691.html
Using GPRS modem to access the Internet, the current implementation method is to use PPP as a transit, the GPRS transmission layer is like this:--------IP/X.25--------Sndcp--------LLC----------------RLC----------------Mac----------------RF----------------Ms is on the left and BS is on the right. For Ms, IP support can be provided, either in me, Ta, or te, as long as there is an interface. However
Before talking about this, we will first introduce another concept, DCE (Data Communication Equipment) speed. It refers to the transmission speed between two modem devices, that is, between telephone lines. We call 56k the speed. DTE (data terminal equipment) refers to the transmission speed from the local computer to the modem. If the telephone line transmission rate (DCE speed) is 56000bps, after receivin
the analog signal received by the modem to a digital signal, which is the modulation and demodulation of the signal.The device that implements the modulation and reconciliation task is called a modem ). When band transmission is adopted, both parties connect to a modem to transmit digital signals on analog signals (carriers. Therefore, this transmission method i
ADSL Broadband Access networks are still commonly used. So I have studied the troubleshooting methods for common faults in ADSL Broadband Access networks. I would like to share with you here, hoping to help you. With the rapid development of the Internet, the ADSL Broadband Access Network is rapidly developing. The advantage of low price has become the first choice for network access for individual users. As you know, when the ADSL Modem receives the
. Sometimes I cannot access the Internet, but the speed will be slow after I go online.The network is busy. Try again later. The telephone line quality may be poor.10. Will the machine automatically start after power-on?A: In the BIOS power management settings, set "Restore ac power loss" to "DISABLED.11. What should I do if the user does not want to hear the MODEM sound?Instruct the user to disable the MODEM
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