In technical words, a router is a Layer 3 network gateway device, which means that it connects two or more networks and operates on the network layer of the Router OSI model.
N'okwu nchịkwa, onye na-enye ihe ntanetị bụ ngwaọrụ ọnụ ụzọ netwọk Layer 3 , nke pụtara na ọ na-ejikọ netwọk abụọ ma ọ bụ karịa na onye na-ahụ maka redire na-arụ ọrụ na nchekwa netwọk nke usoro OSI .