152Chapter 5 Internet FaxUseful Terms to RememberDHCP (Dynamic Host Configuration Protocol)DHCP is a protocol for dynamically assigning IP addresses to Internet Fax and client PCs. With DHCP,an Internet Fax can automatically acquire a unique IP address each time it connects to a networkmaking IP address management an easier task for network administrators. When an Internet Fax logson to the network, the DHCP server selects an IP address from a master list and assigns it to thesystem.If you wish to enable the Direct Internet Fax Transmission on your Internet Fax, a static (reserved by aNetwork Administrator) IP address and configurations must be used instead of the DHCP operation,contact Authorized Panasonic dealer. (see pages 94)SMTP AuthenticationSince the Internet debuted as an electronic infrastructure of global dimensions, the communicationsequipment market has been growing at a phenomenal rate. Yet, technologies help enhance Internetsecurity are yet to come. There are some reasons.1. Internet mail is a multi-hop (multi-protocol, multi-device) structure, so transmission line-basedsecurity is typically difficult to implement.2. No exclusive technologies recommended by the Internet Fax standards are available.3. Encryption-based authentication systems are presently available as standard solutions that drivesystem enhancement and integrity. Such an authentication entry has been embedded in aauthentication feature, such as SASL (Simple Authentication and Security Layer).Many Internet service providers (ISPs) support authentication methods in one form or another. Theauthentication options provided by this machine are as follows:1. SMTP Authentication Extension Service (SMTP AUTH) - while sendingWhen users log on, they are authenticated by their user name and password, thereby preventingunauthorized users from sending or relaying faxes.2. APOP authentication service (APOP) - while receivingA scheme of password encryption used for receiving Email.3. POP before SMTPTo allow prior access to a POP3 server specified before the start of transmission to grant thepermission to use the SMTP server.
