Руководство Пользователя для Netopia 2e-h
Configuring Your Cayman 2E-H
Cayman 2E-H User’s Guide
3-26
November 2000
After you have made this change, you will need to include
this port number when you open a Telnet connection to the
Cayman 2E-H. For example, if you change the Telnet port to
1023 on a Cayman 2E-H using its default IP address
(
this port number when you open a Telnet connection to the
Cayman 2E-H. For example, if you change the Telnet port to
1023 on a Cayman 2E-H using its default IP address
(
192.168.1.254
), you would open a Telnet connection to the
device by entering
telnet 192.168.1.254 1023
in a DOS
window or command line.
3.
Use the
NAT Default Host radio buttons to specify whether
you want your Cayman 2E-H to send NAT traffic it would
otherwise drop to a host on your network.
otherwise drop to a host on your network.
The NAT default host function is useful in situations where you
cannot create a specific NAT pinhole for a traffic stream because
you cannot anticipate what port number an application might
use. For example, some network games select arbitrary port
numbers when a connection is being opened. By identifying
your computer (or another host on your network) as a NAT
default server, you can specify that NAT traffic that would
otherwise be discarded by the Cayman 2E-H should be directed
to a specific hosts.
cannot create a specific NAT pinhole for a traffic stream because
you cannot anticipate what port number an application might
use. For example, some network games select arbitrary port
numbers when a connection is being opened. By identifying
your computer (or another host on your network) as a NAT
default server, you can specify that NAT traffic that would
otherwise be discarded by the Cayman 2E-H should be directed
to a specific hosts.
4.
Use the
Default Host Address field to specify the IP address
of the internal host to which NAT traffic should be
directed.
directed.
5.
If you are finished, click the
Save button to store your
modified configuration in the Cayman 2E-H memory.
6.
Enter an identifier for the pinhole table entry in the
Name
field.
You can identify table entries by protocol name (
ftp
,
Telnet
,
http
), sequentially (
1
,
2
,
3
), by port number (
21
,
80
,
23
), or by
some other naming scheme.
7.
Use the
Protocol dropdown menu to select the type of
protocol (TCP, UDP, ICMP, or PPTP) you want to redirect.
If you want to redirect a protocol type other than TCP, UDP,
ICMP, or PPTP, use the second line of the table to enter the
protocol type name.
ICMP, or PPTP, use the second line of the table to enter the
protocol type name.