Cisco Systems 2.1 manual Port Description

Chapter

Linksys One Communications Solution

8
	Port	Description
	HTTPS Web Host (Port 443)	Select the host name of the device that you want to serve secure
		(encrypted) Web pages.
		Select the host name of the device that you want to act as a
	Site SSH Host (Port 22)	Secure Shell (SSH) server. SSH provides remote connections to
		the server and uses encryption for a secure connection.
		Select the host name of the device to which you want to provide
	Site Telnet Host (Port 23)	telnet access. Telnet access provides a command line login
		session with the server. Telnet sessions are not encrypted.
		Select the host name of the device that you want to act as a
	SMTP E-mail Host (Port 25)	Simple Mail Transfer Protocol (SMTP) host. SMTP allows users to
		send E-mail from the server.
		Select the host name of the device that you want to act as a Post
	POP3 E-mail Host (Port 110)	Office Protocol version 3 (POP3) host. POP3 allows users to
		retrieve E-mail from the server.
		Select the host name of the device that you want to act as an
	IMAP E-mail Host (Port 143)	Internet Message Access Protocol (IMAP) host. IMAP allows users
		to access E-mail on the server.

Here’s how to use the Linksys One Portal to configure the firewall for permitting a data device:

1.Define a static IP address for each device or service. See the ”Adding DNS Names for Static IP Devices” section on page 95.

2.Click the Data Devices > Firewall tab.

3.For each service, select the IP address of the host server to be accessible from outside the firewall. Only one host server can be chosen for each service.

4.Click Commit. Your changes takes effect immediately.

When Internet users point their browser to the external IP address for the Services Router, the incoming requests for this service are forwarded to the specified Web server.

Chapter 8: Managing Data Devices	97
Allowing Access to Network Services