Datasheet

Configuring Access Point Security
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3. Click Apply to save any changes to the LAN to WAN Access screen. Navigating away from
the screen without clicking the Apply button results in all changes to the screens being lost.
4. Click Undo Changes (if necessary) to undo any changes made. Undo Changes reverts the
settings displayed on the LAN to WAN Access screen to the last saved configuration.
5. Click Logout to securely exit the AP-5131 Symbol Access Point applet. A prompt displays
confirming the logout before the applet is closed.
End Port Enter the ending port number for a port range. If the protocol uses
a single port, leave the field blank. A new entry might use Web
Traffic for its name, TCP for its protocol, and 80 for its port number.
Pre configured Rules The following protocols are preconfigured with the
AP-5131. 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.