Proxy Server:->
Proxy server An application-based translation of network access requests.Provision for local user authentication for access to untrusted network. Logging and control of port/protocol access may be possible. Normally used to connect two networks.
NAT :->
Network Address Application-based translation of requests for service or Translation (NAT) connection to an external network. No user authentication is possible, and port/protocol filtering is not usually performed here. Used to redirect requests through one interface. Requests for connection at outside interface must have originated from inside host or they are dropped.
Proxy server An application-based translation of network access requests.Provision for local user authentication for access to untrusted network. Logging and control of port/protocol access may be possible. Normally used to connect two networks.
NAT :->
Network Address Application-based translation of requests for service or Translation (NAT) connection to an external network. No user authentication is possible, and port/protocol filtering is not usually performed here. Used to redirect requests through one interface. Requests for connection at outside interface must have originated from inside host or they are dropped.
