arp scan

I. ARP packet structure(1) Hardware type: Indicates the type of hardware interface that the sender wants to know, and the value of Ethernet is 1;(2) protocol type: Indicates the type of high-level protocol provided by the sender, and its value is 0x0800, which means the IP address.(3) Hardware address length and protocol length: Indicates the hardware address and the length of the High-level protocol address, so that the

ARP Overview 　　 ARP is the abbreviation of Address Resolution Protocol. In the LAN, the actual transmission is frame, and the frame contains the MAC address of the target host. In Ethernet, to directly communicate with another host, you must know the MAC address of the target host. But how can I obtain the target MAC address? It is obtained through the Address Resolution Protocol. The so-called "Address Res

What is ARP2007-12-04 ARP is the abbreviation of Address Resolution Protocol, which is a link layer protocol that works on the second layer of the OSI model, connects the local layer and hardware interfaces, and provides services to the upper layer (Network Layer.L2 Ethernet switches do not recognize 32-bit IP addresses. They transmit Ethernet data packets at 48-bit Ethernet addresses (MAC addresses. That is to say, IP packets are stored in the localD

ARP attacks are so rampant that arp attacks were often used to intercept nearly 20 thousand arp attacks a day. I. Working Principle of ARP In TCP/IP, each network node is identified by an IP address, and the IP address is a logical address. In Ethernet, data packets are addressed by a 48-bit MAC address (physical addr

WIN2000 when the arp-s command set static ARP entry or often by people ARP spoofing, the recent experiment WIN2003 Arp-s finally can lock the ARP entry is not afraid of network law enforcement officers of these software.The virus occurs when the characteristics of the machin

Security Tools Cain Abel to simulate cache poisoning attacks. Cain Abel is a very effective security tool, and the installation process is simple.Before you begin to simulate cache poisoning, you need to collect some information, including the network interface you want to use for this simulated attack, and the IP address of two communications victims.When you first open the Cain Abel Tool, you will find a lot of tabs at the top of the window, we just need to use the sniffer option, and when

0 image.height>0) {if (image.width>=510) {This.width=510;this.height=image.height*510/image.width}}} " Border=0> Does your network often fall out of line, does the IP conflict often occur?Are you concerned about communication data being monitored (e.g. MSN, QQ, EMAIL)?Is your network speed limited by the management software (such as aggregated network management, Peer-to-peer Terminator)?Do you suffer from all kinds of ARP attack software (such as n

Sending address conflict packets using ARP technology, and can find the IP address and MAC address of the attack host ).② "NBTSCAN" (NBTSCAN can obtain the real IP address and MAC address of the PC and use it to know the MAC address corresponding to each IP address in the LAN)③ "Network law enforcement officer" (a LAN Management auxiliary software that uses the underlying network protocol to monitor each host, switch, and other network devices with I

[Programming in linux] ARP programming and linux arp Programming (Note: This part is taken from "Linux C Programming one-stop learning") Ethernet (RFC 894) frame format Figure 1 Ethernet packet type The source address and destination address are the hardware address (also called the MAC address) of the network card. The length is 48 bits and is fixed at the factory of the network card. Run the ifconfig com

-BBThe address of C is: ip:192.168.10.3 MAC:CC-CC-CC-CC-CC-CCIf B is part of a sniffer (generally referred to as a sniffer capable of eavesdropping on packets flowing through the network), for example a machine's ARP cache:C:\>arp-ainterface:192.168.10.1 on Interface 0x1000003Internet Address Physical Address Type192.168.10.3 CC-CC-CC-CC-CC-CC DynamicThis is the ARP