18.3. HTTP 1554. Rules (Using Private IPs)If the firewall is using private IP’s, the following NAT rule need to beadded instead.Rules − > IP Rules − > Add − > IP Rule:General:Name: NAT-ftp-outboundAction: NATService: ftp-outboundAddress Filter:Source DestinationInterface: lan wanNetwork: lannet all-netsNAT:Check Use Interface AddressThen click OK.18.3 HTTPHyper Text Transfer Protocol (HTTP), is the primary protocol used toaccess the World Wide Web (WWW). It is a connectionless, statelessapplication layer protocol (OSI layer 7), which is based on therequest/response architecture. The client, such as Web browser, typicallysends a request by establishing a TCP/IP connection to a particular port(usually port 80) on a remote server. The server answers with a responsestring, followed by a message of its own, for example, a HTML file to beshown in the Web browser, an active-x component to be executed on theclient, or an error message.18.3.1 Components & Security IssuesTo enable more advanced functions and extensions to HTTP services, someadd-on components, known as ”active contents”, are usually accompaniedwith the HTTP response to the client computer.D-Link Firewalls User’s Guide
