AP-51xx Access Point Product Reference Guide
6-32
Pre configured Rules The following protocols are preconfigured with the access point. To
enable a protocol, check the box next to the protocol name.
• HTTP - Hypertext Transfer Protocol is the protocol for
transferring files on the Web. HTTP is an application protocol
running on top of the TCP/IP suite of protocols, the
foundation protocols for the Internet. The HTTP protocol uses
TCP port 80.
• TELNET - TELNET is the terminal emulation protocol of TCP/
IP. TELNET uses TCP to achieve a virtual connection between
server and client, then negotiates options on both sides of
the connection. TELNET uses TCP port 23.
• FTP - File Transfer Protocol (FTP) is an application protocol
using the Internet's TCP/IP protocols. FTP provides an
efficient way to exchange files between computers on the
Internet. FTP uses TCP port 21.
• SMTP - Simple Mail Transfer Protocol is a TCP/IP protocol for
sending and receiving email. Due to its limited ability to
queue messages at the receiving end, SMTP is often used
with POP3 or IMAP. SMTP sends the email, and POP3 or
IMAP receives the email. SMTP uses TCP port 25.
• POP - Post Office Protocol is a TCP/IP protocol intended to
permit a workstation to dynamically access a maildrop on a
server host. A workstation uses POP3 to retrieve email that
the server is holding for it.
• DNS - Domain Name Service protocol searches for resources
using a database distributed among different name servers.
Add Click Add to create a new table entry.
Del (Delete) Click Del (Delete) to remove a selected list entry.
Name Specify a name for a newly configured protocol.
Transport Select a protocol from the drop-down menu. For a detailed
description of the protocols available, see Available Protocols on
page 6-33.
Start Port Enter the starting port number for a range of ports. If the protocol
uses a single port, enter that port in this field.
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