Abstract: Different users are there for the project; the users are present in different groups at different places. By this, a request is induced by one of the other user to interface with other user/users or sharing some data with them. There can be a condition where a message is to be broadcasted to entire college by a user. So this paper is about communication among divergent users present at different sites, sharing this common network. CNS Stands for the college network scenario.

Keywords: CNS, CCNA, CISCO, IP, ROUTER, VLAN.