For the disease known as head lice, see Head lice infestation. The head louse (Pediculus humanus capitis) is an obligate ectoparasite of humans that causes head lice infestation (pediculosis capitis). Head lice are wingless insects spending their entire life on the human scalp and feeding exclusively on human blood.
IP conflicts occur when two or more computers or devices (like a tablet) in the same network end up being assigned the same IP address. An IP (Internet Protocol) address is your computerâs unique identifier, comprised of a string of numbers, such as 192.168.8.4. Without one, you canât connect to the network. Usually a sort of warning or error message will pop up, alerting you of the problem.
A switch will, by default, flood multicast traffic to all the ports in a broadcast domain (or the VLAN equivalent). Multicast can cause unnecessary load on host devices by requiring them to process packets they have not solicited. When purposefully exploited this is known as one variation of a denial-of-service attack.GMP querier [edit]. In order for IGMP, and thus IGMP snooping, to function, a multicast router must exist on the network and generate IGMP queries. The tables created for snooping (holding the member ports for each a multicast group) are associated with the querier.