Solve the problem of how China Netcom installs Routers

How to install a vroFirstCracking network vanguard and network VanguardIn recent time, many local ISPs have usedNetwork Vanguard"Devices to restrict users from sharing the Internet, which has brought a lot of inconvenience to everyone. Through the unremitting efforts of experts, we can now crack the network Vanguard.

Pay attention to the difference between the "Network Vanguard" and the recent virus attack events. During a virus attack, the adsl modem can be used only after being restarted, however, the Internet can continue to be accessed in just a few minutes due to the influence of "Network Vanguard", and it is necessary to refresh a webpage several times before it can be opened. After research, it is found that it uses a variety of methods to detect whether users use the shared Internet access, so as to limit, I will separately crack the network Vanguard:

Check whether there are different MAC addresses in the packets with the same IP address. If so, determine that the user shares the internet. The method for installing a router Cracking for China Netcom is to change the MAC address of each machine to the same one. There are many ways to modify the MAC address, so I will not detail it here. I will use GOOGLE to search for the keyword "Modify MAC address.

Through SNMP Simple Network Management Protocol) to discover multi-host internet sharing. Some routers and ADSL cats have built-in SNMP services. You can use corresponding tools to check whether users share the services. If you want to know whether your router or big cat has enabled the SNMP service, you can find a scanning software (ipscan, superscan ......) scan. If port 161 is enabled with the built-in SNMP Service, the solution is to disable port 161 for SNMP.

How does China Netcom solve the Internet sharing problem when installing vrouters?

If you use a vro or enable the ADSL Cat's route mode to share the Internet, you can go to the management interface and turn it off with the SNMP option. If the management interface of the cat has no options to disable SNMP had to buy a router without SNMP service, such as TP-LINK TL-R400, put in the middle of adsl moden and hub, in the router to do a NAT service, in this way, an address is entered into the ADSL cat, which solves the problem of Internet sharing.

Monitor the number of concurrent ports. If the number of concurrent ports is greater than the set number, it is determined to be shared. This is an unpleasant setting. "Network Vanguard" constantly scans the number of ports opened by users. If it is more than the set value, it will be shared, sometimes, when you press the F5 key several times, it is considered to be shared, and a single user is also affected to access the Internet. This cannot be cracked (unless you have hacked the network ), the solution here is to install an innocent user to call the ISP's customer service, and declare that the ISP will be changed if the problem is not solved, and the network will be normal in a short time;

"Network Vanguard" also uses an unknown method to test shared information from a shared computer. The solution is to install a firewall on all shared clients, set the security level to the highest level. Due to limited conditions, only a few firewalls have been tried. I find that Kingsoft network firewall V is useful, and all the rules in the IP configuration rules that allow others to access the local machine are not required, allow PING to the local machine. Prevent ICMP attacks and check IGMP attacks. If it is WINXP, open the network firewall of the NIC.

After the above solution is adopted, the problem of how to install the vro is solved. The local machine cannot be seen in the local area network, and after WINXP opens the network firewall of the NIC, files cannot be transmitted on QQ, and the network speed slows down, but it can be shared again. If there is a good way, please also inform us. In general, "Network Vanguard" is still an immature product, mainly because it also has an impact on individual users accessing the internet. Browsing webpages often needs to be refreshed several times, and some webpages are complicated, when you want to call several server files, it is also shared, so that the webpage part cannot be displayed.

Moreover, because the "Network Vanguard" constantly scans user ports for bandwidth usage, the network speed slows down. After I use the ISP, the user's opinion is very high, and the customer service phone is almost cracked, now ISP only dares to secretly drive for one or two hours at night:-p this article is based on the methods proposed by several experts and has been written in an empirical study. During the process of writing this article, I would like to thank you for your help.

China Netcom uses network vanguard to detect MAC addresses when installing routers.

◆ Change the mac address of the two machines to the same one, because the analysis principle is to check the mac address. When multiple mac addresses appear, you can determine that multiple machines are using the IP address, then we will change the mac address of the machine to the same.

◆ Crack the "Network Vanguard" of China Telecom and continue to share the Internet with multiple hosts. Now many families have more than one computer, but recently China Telecom has used "Network Vanguard" to detect multi-host internet sharing, the detected account may be disabled. We have the right to use full traffic to deal with this brutal behavior !), Through the test, several methods are obtained, which are publicly available here for you to try.

◆ "Network Vanguard" checks the service port of SNMP Simple Network Management Protocol) to determine whether there are several computers accessing the internet. Therefore, even using IP routers is useless. However, there is also a way to deal with the network Vanguard: Use a secondary proxy to connect two proxy servers. The SNMP protocol is disabled in adsl moden, but the management interface of the adsl moden provided by China Telecom cannot find the place where the SNMP service is disabled;

◆ Add an ADSL Router, such as TP-LINK TL-R400, put in the middle of adsl moden and hub, in the router and then do a NAT service, so into the ADSL cat is an address, in this way, shared Internet access is solved. Disable the SNMP protocol in the vro. Install WIN2000 Server edition with the host shared by WIN, and disable port 161 or port 161 on the firewall.

◆ The solution is to shield the SNMP protocol cats from any other places where the SNMP protocol is disabled. You can switch to a cat that can disable the protocol. To modify the configuration file, you can convert the configuration into a file, use the binary editing tool to modify the default password, and then load it into the cat. This is just a way of thinking and has not been tried.

◆ Buy an ADSL Router, such as TP-LINK TL-R400, put in three shown in the place, In the router and then do a NAT service, so into the ADSL cat is an address, in this way, shared Internet access is solved. Disable the SNMP protocol in the vro.

◆ If you want to share the Internet, install a "ADSL shared Express" software. If you want to install the software on each server, you can share the Internet. No vro or MODEN routing is required. It has not been tested, I will try again after Yueyang limits the route!

◆ How does China Netcom install routers? You can use the Internet Assistant (shared Assistant) to share routes and access the internet. The software route is not based on the route provided by the modem. It is not afraid of scanning and attacks by network leaders, this effectively changes the issue of stream interruption and disconnection.

◆ What is the difference between the Internet sharing Assistant (sharing assistant) and the common host and proxy software: the common host and proxy software are easily limited by the host configuration, which slows down the speed, it is very likely that some websites that only allow hosts to access the Internet cannot be opened by the client, and the hosts must be enabled all the time. If multiple hosts share the internet, it will be more troublesome.

◆ Sharing Assistant (sharing assistant), with multi-host internet sharing, the host is only responsible for pulling the number, and then a virtual host is formed, but the machine that pulls the number cannot be closed, and then the line is dropped, the setting is also relatively simple. After the guest Assistant (sharing Assistant) is installed, there is a setting prompt, as long as the IP address and DNS of the local machine are set, the gateway does not need to be set, the software has the function of Automatically Obtaining the gateway, it shows whether a host has been deployed. If not, it is OK to dial the number.

You will not be troubled by the question of how to install a vro. The explanation in this article is very detailed. Come and try it out.