Technical Solution Based on ADSL disconnection Problem

The technical solution based on the ADSL disconnection problem. In today's Internet era, we often encounter the ADSL disconnection problem. The following describes the knowledge about ADSL disconnection, including how to solve the ADSL disconnection problem.

ADSL disconnection problem features:

There are different brands of ADSL disconnected cats. Shida, d-link500 (g), morning star, etc. Some people on the Internet say that cats who use a certain chip basically have this problem. Of course, this problem also exists in a small part of cats with other chips.

ADSL disconnection problem: 1. The web page cannot be opened. QQ messages cannot be sent. It can be received sometimes. Remote Desktop Connection can be used, indicating that other ports that are not commonly used can still send and receive data. Sometimes, the Ping command is half-and-half-fail ). If you cannot access the cat by using IE, you cannot access the settings page of the cat through the LAN entry address.) You must restart the cat and then make the dial-up successful. Generally, after a cat restarts, it can dial up the Internet again. After a while, it will be disconnected again. Frequently.

Another phenomenon is the author's "d-link Cat". I believe that some adsl bandwidth also has this problem. Please refer to my solution below) this occurs when someone calls or calls out.) After the connection is dropped, the result of ping to the Internet is the cat's gateway, indicating that the data cannot be sent out.) The ping to the cat's gateway can be pinged. Pick up the phone and listen to the dial tone for half a day. If this happens, you don't have to restart the system. After a while, the cat can automatically dial up.

ADSL disconnection solution:

There are two solutions for the first ADSL disconnection phenomenon. First, use IE to enter the cat's settings page and change the cat's port. We all know that cat has opened ftp21.) http80), telnet23 ). Most of the cat's configuration pages can modify these three ports. Find the port setting option and change the corresponding port to 61000-62000. Between. You can use either of them. The memory is generally changed to 21------61121; 80----61180; 23-----61123.

Save the settings and restart the cat. It will not be dropped in the future. Note: After the port is changed, the corresponding port, such as http: // 192.168.1.1: 61180, should be added when IE is used to access the cat. Practice has proved that if the connection is still dropped, it may be the second ADSL disconnection phenomenon. I will discuss it later, and I have solved it now ).

The second solution to ADSL disconnection is through port ing. Some cats do not have the above modified Port page, so they can only use port ing ). Map ports and 80 of Internet access to a non-existent ip address on the Intranet. Of course, you can also map all the ports that access the cat over the Internet to a non-existent ip address on the Intranet. There are two implementation schemes.

One is to use RDR rules to map an Internet access port to an intranet host ). In addition, the BIMAP rule is completely transparent ing, which allows the Intranet hosts to be fully transparent ing to the Internet, and some complex applications can also be used. Such as msn Remote Assistance) is as follows:
◆ NAT rules-detailed entries
◆ NAT Rule Information
◆ Rule ID: 3
◆ Rule type: BIMAP
◆ IF name: ALL
◆ Local Address Source: 10.1.1.254
◆ Local address end point: 10.1.1.254
◆ Global Address Source: 0.0.0.0
◆ Global address endpoint: 0.0.0.0

When you set a rule, you must enter the rule id. Enter an unused rule id. If two rule IDs are 2 and 3 and are mapped to the same port, the rule with id 2 will not be executed if the rule is successfully executed. For example, you are using BIMAP rules to map to a machine that does not exist in the intranet. If you want to use the RDR rule to map port 80 to a web server on your machine, the rule id mapped to port 80 will be smaller than the id of the BIMAP rule. In this way, the implementation can be successful.

For another ADSL disconnection phenomenon, that is, if the phone is disconnected, we use 201 dormitory telephone broadband to access the Internet.) dialing for a long time cannot be performed. Dial Up and quickly drop out. After my troubleshooting, the problem has been solved. The Troubleshooting ideas are provided. When our cat did not change the port, the old line was dropped, and then the port was not changed, and then again.

This article analyzes the two cases of ADSL disconnection. A little different. That is, the previous gateway that dropped the line to ping the cat cannot be pinged. The cat cannot be accessed using IE. The current situation is that the gateway that can ping the cat can still be pinged after the device is disconnected. The ip address of the gateway is returned after the ip address is pinged.

It is difficult to connect to the phone when it is disconnected, so it is suspected that it is a separator problem. I also suspected that the temperature of a cat is too high, or the cat's interior is really faulty. This is because you can call or answer the call. So I started to have no doubt about the telephone line, and I was always skeptical about the cat.) I got the cat's bedroom to test the cat and the separator, so I decided it should be a telephone line problem.

Because there was a slight noise when I picked up the phone. Later, I re-connected the line from the wall to the telephone interface line. Ensure that the power supply of the cat is enabled after the contact is good. But one minute. Dial up now. In addition, I made a phone call on my mobile phone and no longer dropped. I can ping it all the time. It is restored to the state of no disconnection. Of course, the premise is that the port of the cat has been changed or mapped ).

To draw a conclusion. The lines required by Adsl cat must be in good contact, although it seems that there is no problem to use the phone. Once there is a dial-up call for half a day, it will not be able to dial the phone, or it will be disconnected, and the gateway can be pinged frequently ), consider whether there is a problem with the telephone line, for example, whether there is noise in the phone sound ).

Generally, it is not necessary to suspect that the internal temperature of the separator or cat is too high or the temperature of the cat is too high. If a cat does not buy a fake copy, it will not be a problem ). The reason for the first disconnection is as follows. It may be that the virus is attacking the cat. It causes a strong load on the cat and causes it to crash. It means that the cat cannot process so much data and falls down ).

When we only changed the port of the cat, although it was not dropped, the invitation to the qq voice video we sent was never sent, that is, the invitation was not received on the other party's qq) after I made a bimap ing on the spot, I sent the video speech invitation to the other party, and of course I could use it ). Therefore, this ing is better. It does reduce the burden on cats. However, be sure not to map the bimap rules to a computer that actually exists on the Intranet. Otherwise, this computer is too insecure.