Physical address is a address which helps to locate devices in LAN..and it normally work with switch.formation:-its 48 bit adress also called BURNT In ADDRESS.when devices are made vendor define this 24 bit is for vendor code identification..Logical adress: is a unique address to locate device in network..Mainly in WAN..where routers r used..formation: its a 32 bit adress divided into 4 octet ea