IAB is also known as Individual Address Blocks and the number of addresses is 2 24 or 16 million. MA-S, or MAC Address Block Small, is a block of MAC addresses where the maximum of addresses is 2 12 or 4096. MA-M, or MAC Address Block Medium, is a block of MAC addresses where the maximum number of addresses is 2 20 or 1 million. MA-L, or MAC Address Block Large is a block of MAC addresses where the maximum number of addresses is 2 24 or 16 million.

The OUI is basically the first three octets of a MAC address. They are purchased and assigned by the IEEE. Wireshark is a popular, free and open-source packet capture tool that enables network and security administrators to take a “deep dive” analysis into traffic moving through a network.An OUI is a 24-bit number that uniquely identifies a vendor or manufacturer. Wireshark can be deployed for a variety of purposes including sniffing out security issues, troubleshooting network performance problems, traffic optimization, or as part of the application development and testing process. Wireshark is primarily used to capture packets of data moving through a network. The tool allows users to put network interface controllers (NICs) into promiscuous mode to observe most traffic, even unicast traffic, which is not sent to a controller’s MAC address. However, doing this normally requires superuser permissions and may be restricted on some networks.

Top metrics for multicloud managementĮven without that ability, Wireshark is able to sniff out most packets flowing through a network, no matter the OS, the networking protocol, encryption method or file format. Wireshark was initially written to run on Solaris and Linux, but now runs on virtually all operating systems including Windows and macOS. The source code is also available for those who want to modify Wireshark to run within a unique environment. All versions of Wireshark and the source code are fully open source and can be downloaded for free.

Wireshark oui tool