arp whois

At present, most of the network is covered under the same LAN, it is easy to check each other, sometimes users will use Peer-to-peer software to other computers ARP attack, so that other people's speed slowed. In the WIN8 system, there is not a perfect ARP firewall to prevent ARP attacks, but you can bind the computer MAC address to avoid attacks.

Failure phenomenon: The machine can be normal before the Internet, suddenly appear can be authenticated, not the phenomenon of the Internet (can not ping the gateway), restart the machine or under the Msdos window to run the command arp-d, but also to restore the Internet for a period of time. Cause of the failure: This is caused by an APR virus spoofing attack. The cause of the problem is generally caused by the legend of the

Someone in the LAN uses ARP spoofing Trojans (for example, World of Warcraft, heaven, audition and other hacking software, some plug-ins are also maliciously loaded with this program ). The following are the analysis and solutions. [Fault principle] To understand the fault principle, Let's first look at the ARP protocol. In a LAN, ARP is used to convert an IP add

The company uses Telecom optical fiber and allocates five IP addresses. For ease of use, the optical fiber of the optical cat is directly connected to the switch. The outside and inside networks of the Cisco 2911 router are all wired from the vswitch. Because the Cisco router enables proxy-ARP by default, when outside receives the broadcast ARP information, because the inside CIDR Block and the broadcast C

LAN Security: The method and principle of resolving ARP attack it World Network 2006-01-26 10:17"Cause of failure"A Trojan horse program that someone uses ARP spoofing in the LAN (for example: Legendary thief software, some legendary plug-ins have also been maliciously loaded this program)."Principle of failure"To understand the principle of failure, let's first look at the

Processing function Analysis of Linux kernel arp (ARP_RCV, arp_send) int ARP_RCV (struct sk_buff *skb, struct net_device, *dev,struct Packet_type *pt)When the system's network driver receives an ARP packet, call this function to process. In simple terms, Arp_revSend back to the machine or its agent of the other machine's network card hardware address (MAC addresses), and the sender's network card hardware a

ARP spoofing and man-in-the-middle attacksPreface: In the previous WPA/WAP2wifi password cracking note, we talked about how to detect nearby open APs and crack the access, so what can we do when we enter someone else's lan? In other words, what will happen if someone else enters our internal network? This article briefly introduces the principles of ARP and MITM, and hijack the traffic of the target host in

Lie to people, that is, the so-called "social engineering", and also include policies (the offending hacker Kevin Mitnick has been specifically implemented ), for example, assume you are an employee of a company so that you can exchange company secrets with real employees. To cheat computers, there are many different technologies. A common one is ARP Cache Poisoning. This is the core of this article. ARP po

According to the user's actual network environment, we divided the ARP virus Network prevention and control scheme into two-layer switch-based and three-layer switch-based two environments are described respectively.For the network management software installed on the PC in the form of bypass, if it is managed by the form of ARP spoofing, it is similar to the real ARP