Please feel free to contact us via our Contact Us page with any questions, improvements, requests, ideas, or anything at all you may have. Our current site will continue to operate without the API enabled and once the beta site goes live, all (correct) API queries will be backward compatible with the new website. We will get back to you with a link when the beta is live. We have tested the new site a few times during off-peak hours and the results are extremely promising! If you would like to help test our beta site, please Contact Us and let us know you are interested in the beta. The destination should be your MAC address and the source should be your DHCP servers MAC address. Every Computer on the Network Segment (Switched Network, LAN) is identified by its MAC Address. These activities will show you how to use Wireshark to capture and analyze Dynamic Host Configuration Protocol (DHCP) traffic. MAC address is the unique Identity (48 bits in length) of the NIC on the Ethernet Network. I've looked at the PCAP-FILTER Manpage and it is unclear. ![]() For some specific OUIs or exact MAC addresses, Wireshark provides extra details. There are (up to) 4 fields in an 802.11 frame that contain mac addresses: source mac transmitter mac destination mac receiver mac Is there a pcap capture filter for these values Something similar to ether host ff:ff:ff:ff:ff:ff, for example. There are more than 47K mac address prefixes in the database. ![]() ![]() Vendors We update our database as soon as we have new information from the IEEE directory and Wireshark manufacturer database. Since we have been subject to abuse of our API from several large companies and smart phone app creators who have incorrectly implemented our API, we have essentially been DDoSed for the past few months. Wireshark is a free and open source packet analyzer used for network troubleshooting and analysis. Our MAC Address API outputs a field called macAddressDetails.wiresharkNotes. MACLookup provides an easy way to search for MAC address prefixes and matches them to the chipsets manufacturer. First we would like to thank all our loyal users, especially the ones who have donated!
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