Can you send data in LAN without an IP?

[iamhamidd]

From What I know, IPs are used to communicate b/w two different networks say LAN1 and LAN2... and MACs are used to communicate within a LAN.. I think this because my instructor says that Hubs and Switches are used to communicate within a LAN, That's why, they're Physical and Data Link Layer Devices.. While Routers are Network Layer Devices, Meaning they are used to connect two different networks.. So Can you commuincate within a LAN, with help of MAC Addresses only ? NO IPs ?

[balaji.bandi]

In the Lan you it uses broadcast domain, if it cross broadcast domain of Lan, it required Routing so Layer3 will be introduced to talk between 2 networks.

[MHM Cisco World]

Nop
always you need IP address of client 
BUT
you need Router or L3SW in your network is depend 
if both Client in same subnet no need router if not then you need router