Internet users use "tricks" to block Operators

Internet users use "tricks" to block Operators

Unity

Battle MAC address

　　"Telecom shield"

Scan MAC address

Generally, we use a vro to share the data packets that are sent from the original Intranet computer through the adslmodem or the NAT feature of the vroadsl, encapsulate a valid public IP address to access the Internet. The original MAC address and IP address are used as the original address, and Nat forwards the IP address to the specified Intranet computer, at the same time, the public network is not aware of the Intranet situation. By constantly scanning, telecom operators can check whether the same IP address packet contains multiple MAC addresses to determine whether users share the internet.

　　"Netizen's spear"

Modify MAC address

For such restrictions, the common method of cracking is to change the MAC address of each server to the same one, commonly known as copying MAC addresses. First, you need to obtain the MAC address of the Local Machine by right-clicking "neighborhood" and selecting "properties", right-clicking "Local Connection", and selecting "status ", click the "support" tab. The "actual address" displayed in the "details" tab is the MAC address of the local machine. There are three specific repair methods.

　1. Modify the Registry

Enthusiastic netizens said that by modifying the registry, users can avoid sharing restrictions on telecom users.

For example, run the Windows Registry Editor under winodws98 and expand "HKEY_LOCAL_MACHINE/system/CurrentControlSet/services/class/net ", the subkeys similar to "0000, 0001, and 0002" are displayed. Click the "0000" sub-key and search for the content of the "driverdesc" sub-key until the information about the NIC registry is exactly the same as that of the target. After the correct Nic is found, click "Edit/New/string" in the drop-down menu and the name of the string is "networkad-dress ", double-click the name of the newly created networkaddress string to enter a value. Enter the new MAC address value you want to specify. Add a string value "paramdesc" under "networkaddress", which will be used as the description of "networkaddress". The value can be set to "macaddress ". Modify the content you want and restart the computer.

　　2. Modify Nic attributes

Most NICs can change their MAC addresses by modifying the NIC attributes in the control panel. Right-click the NIC icon in the Device Manager and choose the NIC icon to modify the MAC address, and select the "properties/advanced" tab. In the "attribute" area, you can see a project called "networkaddress". After opening the project, enter the MAC address value to be specified under the "value" on the right, it takes effect after restart.

　　3. Use third-party software

If you are a Windows/XP user, you can use the MAC address to modify the software SMAC. After running SMAC, the list box in the window lists the working NICs on the computer. After selecting the NIC to be modified, enter a new MAC address in the six input boxes below the list box, and click "updatemac" on the right. After the modification is complete, you also need to restart the system to make the settings take effect.

　Round 2

Battle SNMP (Simple Network Management Protocol)

"Telecom shield"

View SNMP

Some telecom operators use more advanced detection methods to view SNMP (Simple Network Management Protocol ). Some routers and adslmodem have the built-in SNMP service, and some use the "161" product as the service port. The operator can view and determine the number of computers that share the Internet through the ADSL line through the software.

　　"Netizen's spear"

Disable SNMP

If the Web management interface of adslmodem contains the SNMP option, disable it. If you cannot disable it on adslmodem, you can also disable the SNMP service on the router to achieve the same effect. You can disable the SNMP option on the "management" and "service" interfaces of the vro.

　Round 3

Battle dialing software

"Telecom shield"

　　Star speed

The new generation of wide and narrow band user Desktop client software, which is researched and developed by Guangdong Telecom. Its main function is to provide broadband and narrowband dialing functions in the existing Windows operating system environment, and provide a wide range of value-added services in the client, including through the active cooperation with various sp, applications with rich content and diverse interests are integrated into the client in the form of plug-ins, and the browsers commonly used by Internet users are seamlessly integrated into the client in a customized form.

However, according to the user's report, once installed, there is no difference between this and other dial-up software based on the pppoe protocol, the user will not be able to share the Internet with the router. A technician who analyzed the software told reporters that it had set up a password-Protocol converter internally. After installing the software and dialing the software, the system will automatically bind the broadband phone number and account, connect to China Telecom's central data center and encrypt and convert users' passwords. This parameter is changed and then connected to the local terminal settings of China Telecom. The dual password is used to implement sharing restrictions.

　　"Netizen's spear"

Convert password and then dial

It is reported that the "Star speed" password Converter uses MD5 for conversion, that is, to calculate a string of MD5 code for the user name, add it to the end of the user's original password, in this way, a real dial-up password is formed, so that the common password entered on the router cannot pass the verification.

Currently, the common attack method on the Internet is to use the MD5 Code Converter to generate MD5, add it to the real password, and place it on the router for dialing.

(Note: "evil tricks" are purely for discussion and are not used for cracking without verification .)