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Motorola Series Switch WS5100 User Manual

Page 257

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Switch Security

6-33

3. Click the

Add

button.

4. Define the NAT

Type

from the drop-down menu. Options include:

• Inside - The set of networks that are subject to translation. These are the internal addresses you are

trying to prevent from being exposed to the outside world.

• Outside - All other addresses. Usually these are valid addresses located on the Internet. Outside

addresses pose no risk if exposed over a publicly accessible network.

5. Define the NAT

Direction

from the drop-down menu. Options include:

• Source - The inside network is transmitting data over the network its intended destination. On the

way out, the source IP address is changed in the header and replaced by the (public) IP address.

Destination - Packets passing through the NAT on the way back to the switch managed LAN are searched
against to the records kept by the NAT engine. There the destination IP address is changed back to the specific
internal private class IP address in order to reach the LAN over the switch managed network.

6. Enter the

Local Address

used at the local (source) end of the NAT configuration. This address (once

translated) will not be exposed to the outside world when the translation address is used to interact with
the remote destination.

7. Enter the

Local Port (1 - 65535)

used to for the translation between the switch and its NAT destination.

8. Use the

Protocol

drop-down menu to select either

TCP

or

UDP

as the protocol

9. Enter the

Global Address

to assign to a host in the outside network. This should be interpreted as a

secure address.

10.Displays the

Global Port

used to for the translation between the switch and its NAT destination.

11.Refer to the

Status

field for the current state of the requests made from applet. This field displays error

messages if something goes wrong in the transaction between the applet and the switch.

12.Click

OK

to use the changes to the running configuration and close the dialog.

NOTE: After selecting (and saving) a protocol type of TCP or UDP (using the Web UI), the
switch CLI will not display the selected protocol type or provide an option to configure it.
Ensure both the protocol and port are defined using the Web UI.