Network Administrators are generally mid-level support staff within an organization and don’t typically get involved directly with users. Network Administrators focus upon network components within a company’s LAN/WAN infrastructure ensuring integrity. Depending on the company and its size, the Network Administrator may also design and deploy networks. The actual role of the network administrator will vary from place to place, but will commonly include activities and tasks such as network address assignment, management and implementation of routing protocols such as RIPv2, HSRP, routing table configurations and certain implementations of authentication (eg: challenge response, etc). It can also include maintenance of certain network servers: file servers, VPN gateways, intrusion detection systems, etc.