Extreme Networks Altitude 4700 Series Product Reference Manual page 222

Configuring Access Point Security
Pre configured
Rules
Add
Del (Delete)
Name
Transport
Start Port
End Port
4 Click Apply to save any changes to the Subnet Access screen. Navigating away from the screen
without clicking the Apply button results in all changes to the screens being lost.
5 Click Undo Changes (if necessary) to undo any changes made. Undo Changes reverts the settings
displayed on the Subnet Access screen to the last saved configuration.
6 Click Logout to securely exit the Access Point applet. A prompt displays confirming the logout before
the applet is closed.
222
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.
Click Add to create a new table entry.
Click Del (Delete) to remove a selected list entry.
Specify a name for a newly configured protocol.
Select a protocol from the drop-down menu. For a detailed
description of the protocols available, see
Protocols" on page 223.
Enter the starting port number for a range of ports. If the
protocol uses a single port, enter that port in this field.
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.
"Available
Altitude 4700 Series Access Point Product Reference Guide