Cisco is an American multinational corporation that operates in several different industries but focuses on network-related hardware and software issues. Cisco was founded in 1984 and first started with produce routers .The company's original goal was to build a router to connect all of Stanford University's computers so they could communicate with each other. nowadays, Cisco is active not only in web and network products, but also in all areas of technology, including the Internet of Things, domain security, energy management, and etc. Cisco products and services generally focus on three market segments.Organizations, service companies, and small and medium-sized businesses make up these three divisions .Cisco specializes in information technology in five areas: networking, security, collaboration, data center, and the Internet of Things, and makes its products available to users. As mentioned, one of Cisco's areas of expertise is networking and equipment. In addition to the router, which is known as the first product of the company, Cisco has a variety of products in the field of servers, firewalls and switches that the user can use different models according to their needs.