Symbol Technologies WS 2000 manual

Step 8: Configure Subnet Access

1.Click in a cell of the table that represents the subnet-to-subnet (or subnet-to-WAN) relationship to define. All access rules (if any are defined) appear in the table in the lower-half of the screen.

2.Use the pulldown menu above the list Allow or Deny all the entries specified in the exception table. You cannot allow some protocols (or ports) and deny others.

3.From the list of checkboxes on the left side, select those protocols to allow or deny. The protocols are automatically added to the table with the relevant Name, Transport, Start Port, and End Port information. The available protocols are:

Protocol	Transport,	Description
	Port Used
HTTP	TCP, 80	Hypertext Transfer Protocol (HTTP) is the protocol for
		transferring files on the World Wide Web. HTTP is an
		application protocol that runs on top of the TCP/IP suite
		of protocols, the foundation protocols for the Internet.
TELNET	TCP, 23	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.
FTP	TCP, 21	File Transfer Protocol (FTP) is an application protocol
		that uses the Internet’s TCP/IP protocols. FTP provides
		a simple and efficient way to exchange files between
		computers on the Internet.
SMTP	TCP, 25	Simple Mail Transfer Protocol (SMTP) is a TCP/IP
		protocol used 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 then POP3 or IMAP receives the
		email.
POP	TCP, 109:110	Post Office Protocol (POP3) 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	TCP+UDP, 53	Domain Name Service (DNS) protocol searches for
		resources using a database that is distributed among
		different name servers.

•You can make changes to the information automatically filled into the table; however, note that changes in the selected transport type can change the port numbers that can be specified in the table.

4.To add an access rule for a protocol, port, or transport other than the ones available from the checkboxes on the left, click the Add button. An empty row is added to the table.

•Specify a Name to identify the new access rule. This could be the name of a particular application, for example.

Copyright © 2004 Symbol Technologies, Inc. All Rights Reserved	41
WS 2000 Wireless Switch: 1.0 Date of last Revision: March 2004