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Security features to prevent ARP spoofing or IP address spoofing in some cases may also perform additional MAC address filtering on unicast packets, however this is an implementation-dependent side-effect. Additional security measures are sometimes applied along with the above to prevent normal unicast flooding for unknown MAC addresses. [5]
Less common is the artificial flooding of address tables in a MAC flooding attack. Another common cause is a host with an ARP cache timeout longer than the timeout of the forwarding information base (FIB) in a switch—the switch forgets which port connects to the target before the host forgets the MAC address of the target. [2]
Broadcast, unknown-unicast and multicast traffic (BUM traffic) [1] is network traffic transmitted using one of three methods of sending data link layer network traffic to a destination of which the sender does not know the network address.
The Address Resolution Protocol (ARP) is a communication protocol for discovering the link layer address, such as a MAC address, associated with a internet layer address, typically an IPv4 address. The protocol, part of the Internet protocol suite , was defined in 1982 by RFC 826 , which is Internet Standard STD 37.
The Individual Address Block (IAB) is an inactive registry which has been replaced by the MA-S (MAC address block, small), previously named OUI-36, and has no overlaps in addresses with the IAB [6] registry product as of January 1, 2014. The IAB uses an OUI from the MA-L (MAC address block, large) registry, previously called the OUI registry.
Click any recent activity entry to view its IP address as well as the date and time it was collected. If one is drastically different from the others, remove it and change your password. Be aware that there are some legitimate reasons why your history can show unfamiliar locations, such as your mobile device detecting the wrong location or ...
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Duplicate Address Detection DOS: duplicate address detection denial of service; changed Ethernet address: a Global IPv6 address has a new MAC address; flip flop: a node uses two MAC addresses one after the other; reused old Ethernet address: reuse of an old MAC address; Unknown MAC Manufacturer: MAC vendor unknown, might be a forged one