Strange network problems with high score bounties in a hurry

ARP spoofing. Exclusion method: Go to DAOS, use ipconfig all to check the intranet MAC address of the ** server (recorded as A), and then ping the gateway on other computers (enter DOS), and then use ARP A to check the MAC address of the corresponding gateway (recorded as B).

See if A and B are the same, the same description is not ARP spoofing. Not the same, definitely ARP spoofing. You can bind the IP address and MAC address of the batch file, open Notepad, and the content is as follows:

echoarp –d

arp s 00-e0-11-12-14-15 and then save the above file as: and put it in the Start Menu launcher. The IP address and MAC address in the third line are both server's.

After the binding is completed, you can access the Internet normally.

Shared Aegis Can't you connect if you don't use it?

To find this question, you can start with this:

1 Alone let a machine not use the Aegis to see the Internet is normal, normal is the problem of your LAN (including the problem of the Aegis), if it is not normal, check the security mechanism of the machine first, to see if there is any malware or IE has been implanted with malice**, some**It is difficult to detect, I met two days ago and had to reinstall the system. I've had this situation in Kunming recently, I can get on QQ but I have to refresh it for half a day to open the web page.

You install an ARP firewall to see which machine is sending ARP attacks, because if one machine is poisoned and affects the others, there will be ARP data to be found.

Possible causes: 1. Telecom restricts sharing, resulting in unknown problems.

Solution: You can use a single computer to connect AD to try it and see if there is a problem.

2. Routing failure.

Solution: This is not very likely, you can see if the route works normally at the time of the problem.

3. ARP attacks.

When there is a problem, check whether there is an ARP attack on the intranet.

Running: cmd enter.

arp -a

Normally, what you see should be the IP and MAC of the route, if not, then it is an attack.

1) If it is a problem with the broadband itself, first directly connect the broadband network cable to test, if it is a broadband problem, contact the broadband customer service to solve it.

2) If it's a problem with the router, if it can be used originally, it can't be used for the time being, my own practice is to disconnect the power of the router and plug it in, and I'll take a look. In there is a factory reset, from the new strict according to the manual settings can be used, I don't understand, it is not recommended to set it at will (this is under the premise of the correct physical connection, sometimes the router is slow or failed to find the IP address, not that the router is broken).

If it can't be solved all the time, it is recommended to call the customer service of the router, they have **** guidance, I encounter a problem that I can't solve by myself, it is very useful to consult the advice they gave, and they will give the correct advice for your settings or operations.

3) If you turn off the wireless switch, turn it on, if it is a wireless connection with software, it is normal for the software to be difficult to use and often have problems, there is no better way, use a router. In addition, it is caused by the network card driver is not or is not suitable, and whether there is a problem with the network cable interface or network cable.

4) If it is caused by a system problem, it is recommended to restore the system or reinstall it.