Configuring Pinhole Settings - Cayman Systems 2E-H User Manual

Configuring
Pinhole Settings
Configuring Your Cayman 2E-H
3-24
4. Enter your new password again in the Repeat Password
field.
You repeat the new password to verify that you entered it
correctly the first time.
5. When you are finished, click the Save button to store your
modified configuration in the Cayman 2E-H memory.
Network Address Translation (NAT) pinholes let you pass specific
types of network traffic through the router's NAT interfaces. NAT
pinholes allow you to route selected types of network traffic, such as
FTP requests or HTTP (Web) connections, to a specific host on the
Cayman 2E-H's LAN network transparently.
To set up NAT pinholes, you identify the type(s) of traffic you want
to redirect by port number, and you specify the internal host to
which each specified type of traffic should be directed.
The following list identifies protocol type and port number for
common TCP/IP protocols:
FTP (TCP 21)
Telnet (TCP 23)
SMTP (TCP 25),
TFTP (UDP 69)
SNMP (TCP 161, UDP 161)
Establishing pinholes to allow access through the router to
internal hosts can create potential security risks. You should
implement internal network security measures to prevent
unauthorized access by outside users.
To display the Pinhole Configuration window (Figure 3-11), click the
Pinhole button on the Cayman 2E-H Home Page. You must be in
Expert Mode to open the Pinhole Configuration window.
Cayman 2E-H User's Guide
November 2000