As noted earlier, network security design requires that corporations determine the level of implementation investment and the total cost of intrusion they can withstand. Then corporationsmust decide how to allocate their available network security budgets to adequately secure their networks. To ensure the most comprehensive level of protection possible, every network should include security components that address the following five aspects of network security. Identity Identity is the accurate and positive identification of network users, hosts, applications, services and resources. Identity mechanisms are important because they ensure that authorized users gain access to the enterprise computing resources they need, while unauthorized users are denied access. .
