Internet Group Managment Protocol je sastavni dio multicastprometa. On ima vrlo važnu ulogu u usmjeravanju prometa. IGMP protokol je protokol koji koriste hostovii susjedni usmjerivači za multicastkomunikaciju s IP mrežama i koristi resurse za prijenos poruka. Ovaj rad će biti baziran da se što opširnije opiše IGMP protokol i njegove tri postojeće verzije. Drugi dio rada sastoji se od detaljnog opisa izrade IPTV mreže koja se sastoji od dva video servera, tri usmjerivača (dva hAP ac usmjerivača i jedan RB2011UiAS-2HnD-IN usmjerivač) i jednog video klijenta. Ovi video klijenti mogu biti mobilni uređaji, televizori ili računala, ali u ovom slučaju za video klijent korišteno je računalo. ; Internet Group Managment Protocol is an integral part of multicast traffic. It has very important role in routing traffic. IGMP protocol is protocol which is used by hosts and routers for multicast communication with IP networks and it use resourses to transmit messages. This paper will be based on describing the IGMP protocol and its three existing versions in as much detail as possible. The second part of this paper consists of a detailed description of how did I make an IPTV network. This IPTV network consists two video servers, three routers (two hAP ac routers and one RB2011UiAS-2HnD-IN router) and one video client. This video client can be mobile phone, television or computer, but in this case a computer was used for the video clinet.