netwyman

Network Service a capability that facilitates a   network  operation. It typically is provided by a   server  (which can be running one or more services), based on network  protocols  running at the   application  layer in the   Open Systems Interconnection (OSI)   model   of the   network . Some examples are   domain name system (DNS) ,   dynamic host configuration protocol (DHCP) ,   voice over internet protocol (VoIP) , etc. As defined by Network Functions Virtualization (NFV)  ETSI  Industry Specification Group (ISG) in the  Network Functions Virtualisation (NFV); Terminology for Main Concepts in NFV , a network service is a composition of  network functions  and defined by its functional and behavioral specification. Computer Network Services and Solutions Routing & Switching   Utilizing the latest in Cisco technology. Utilize VLAN’s ...

NAT as Network Address Translation Network Address Translation (NAT) is the process where a network device, usually a firewall, assigns a public address to a computer (or group of computers) inside a private network. The main use of NAT is to limit the number of public IP addresses an organization or company must use, for both economy and security purposes. The Purpose of NAT There are three purpose to define NAT: Provides a type of firewall by hiding internal IP addresses Enables a company to use more internal IP addresses. Since they're used internally only, there's no possibility of conflict with IP addresses used by other companies and organizations. Allows a company to combine multiple ISDN connections into a single Internet connection. NAT - Network Address Translation The Requirements of NAT - Network Address Translation Its a kind of shortage of the public IPv4 address space has forced the all of us to think harder about alternative ways of addressing net...