VLSM ARP and Multicasting

Subnetting is the practice of dividing a given block of addresses into sub-units. This is done to meet organizational security and performance needs. In this course youll learn the differences between fixed-length subnet masks and variable-length subnet masks. Youll explore how subnet values are calculated and how to use VLSM to subnet a given block address. Finally youll learn how VLSM relates to Classless Inter-Domain routing. Address Resolution Protocol is a fundamental protocol that maps an IP address to a target MAC address. In this course youll also learn the purpose of address mapping the characteristics of the ARP cache and ARP commands. In addition youll learn about each of the fields in an ARP message and other ARP capabilities. While the majority of network communications gets done using a one-to-one transmission some forms of communication are better served using a one-to-man transmission like a television broadcast. The Internet Protocol supports this one-to-many type of communication with the Internet Group Management Protocol. Youll learn about the uses of multicasting and its main characteristics. Youll also explore the role of IGMP in multicasting and how multicast routing works. This course was originally created by Global Knowledge (GK).