![]() Packet sniffers are used for both legal and illegal activity. A packet sniffer that has been installed on the network is capable of examining all of your email contacts, email messages, downloaded files, Web sites you visited, and all of your audio and video activity. However, with a packet sniffer, it can examine all of the data from all of the computers that are connected to the network by viewing every packet that is sent over the network. The packet sniffer gets its name from normal computer usage where the individual computer inspects packets of data that match the address of the computer. When the data passes through the system, it is captured and stored in memory so the information can be analyzed. ![]() A packet sniffer allows you to set the interface of the network to view all of the information that is transmitted over the network. Packet sniffers exist in the form of software or hardware and can capture network traffic that is both inbound and outbound and monitor password use and user names along with other sensitive information. How a Packet Sniffer WorksĪ packet sniffer can view a wide variety of information that is being transmitted over the network as well as the network it is linked to. Hackers often use packet sniffers because they are very difficult to detect and can be installed in almost any location on the network. Packet sniffers are used for network management and network security and they can also be used by unauthorized users to steal information from a network. ![]() You could use the packet builder feature to check the network’s protection against attacks and intruders.Home › Network Security › Packet Sniffers What is a Packet Sniffer and How Does It Work?Ī packet sniffer is a device that is used by network administrators to monitor the data that is being transmitted over a network. There is also a packet builder, which allows you to build your own custom network packets and send them into the network. The flexible system of fully-configurable filters can be used to discard all network traffic except for the specific traffic patterns you wish to analyse. It also performs a full reconstruction of top-level protocols such as HTTP, SMTP, POP, IMAP, FTP, TELNET and others. The program also features full decoding and analysis of network traffic based on the following low-level Internet protocols: AH, ARP, ESP, ICMP, ICMPv6, IGMP, IP, IPv6, IPX, LLC, MSG, REVARP, RIP, SAP, SER, SNAP, SPX, TCP and UDP. It can defragment and reassemble network packets into streams. SoftPerfect Network Protocol Analyzer presents the results of its analysis in a convenient and easily understandable format. This is a useful tool for network administrators, security specialists, network application developers and anyone who needs a comprehensive picture of the traffic passing through their network connection or a segment of a local area network. ![]() It captures the data passing through the dial-up connection or Ethernet network card, analyses this data and then represents it in a readable form. SoftPerfect Network Protocol Analyzer is a free professional tool for analysing, debugging, maintaining and monitoring local networks and Internet connections. SoftPerfect Network Protocol Analyzer Free network sniffer for Windows ![]()
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