<P> The Address Resolution Protocol is a request and response protocol whose messages are encapsulated by a link layer protocol . It is communicated within the boundaries of a single network , never routed across internetwork nodes . This property places ARP into the link layer of the Internet Protocol Suite . Although ARP was not developed in the OSI model , it is often described here as residing in layer 3 , being encapsulated by Layer 2 protocols . </P>
<P> The Address Resolution Protocol is a request and response protocol whose messages are encapsulated by a link layer protocol . It is communicated within the boundaries of a single network , never routed across internetwork nodes . This property places ARP into the link layer of the Internet Protocol Suite . Although ARP was not developed in the OSI model , it is often described here as residing in layer 3 , being encapsulated by Layer 2 protocols . </P>
arp operates at which layer of the osi model
arp operates at which layer of the osi model
layer 3
layer 3