Shulou(Shulou.com)06/02 Report--

1 find the ARP source: if the gateway MAC address changes, it is likely to be encountered by arp***

Arp-a

192.168.3.1 60-83-34-8f-e9-7e

Or

C:\ Users\ win7 > tracert-d www.baidu.com

Normally, the first hop should be a gateway, if not, the first hop is most likely to be an arp virus host. If the IP management of the company's intranet is chaotic and the host corresponding to the IP cannot be found, you can set any host IP to the IP of the arp host.

2 treatment

An antivirus

B re-system

3 Prevention

A two-way binding of IP MAC addresses between routers and PCs (inconvenient if the network is large)

B the best way to bind the router's IP and MAC on the PC side

Arp-s 157.55.85.212 00-aa-00-62-c6-09

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