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Page 66 / 126 Scroll up to view Page 61 - 65
030-300613 Rev A
66
August 2009
User Guide
VersaLink Wireless Gateway (Model 7500)
13.2.2.4
New Custom Service
The following screen will appear if you click the
new custom service
button from the
Port Forwarding
screen
(
Security > Services > Port Forwarding > New Custom Service
). This screen allows you to add predefined and
custom-defined applications to your
Port Forwarding Service Name
drop-down menu. You can enable the selected
service as a host service or a dynamic service.
To create a service rule for outgoing traffic from the local network, select the desired protocol, and specify the port
range from which you want to allow traffic in medium firewall settings, direction as out, and port direction as “dst”
(if you want to check for destination port in outgoing traffic) or “src” (if you want to check for source port in
outgoing traffic).
If you want to allow incoming traffic from outside the network to the local network, create an “in” direction rule,
and select the port range on which you want to allow incoming traffic. Select LAN port on which this traffic needs
to be directed and the desired protocol.
These rules can be applied by enabling the service from the
Service Name
drop-down menu on the
Port
Forwarding
screen.
Service Name
Displays the name for the “new” service being created.
Protocol
Click this drop-down menu to select the IP Protocol type.
•
both: BOTH Transmission Control Protocol and User Datagram Protocol.
•
tcp: Transmission Control Protocol.
•
udp: User Datagram Protocol.
Start Port
Displays the start Port number for Incoming/Outgoing Packets.
End Port
Displays the end Port number for Incoming/Outgoing Packets.
LAN Port
Displays the Port number to map the Incoming WAN Packets to. This will not be
required for outgoing packets.
Direction
Click this drop-down menu to select the direction of the packet.
•
in: Incoming WAN Packets.
•
out: Outgoing WAN Packets.
Page 67 / 126
030-300613 Rev A
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August 2009
User Guide
VersaLink Wireless Gateway (Model 7500)
Port Direction
Click this drop-down menu to select the port that needs to be checked.
•
dst: Rule will be created for destination port.
•
src: Rule will be created for source port.
add
Click this button to create/adds a rule to the custom service.
done
Click this button to return to the
Port Forwarding
screen.
13.2.2.5
Static NAT
The following screen will appear if you click the
static NAT
button from the
Port Forwarding
screen (
Security >
Services > Port Forwarding
). This screen allows you to set up an IP address to be your default NAT destination,
mapping a private IP address to a public IP address, where the public address is the WAN IP address of the
Gateway. This allows an internal host to have an unregistered (private) IP address and still be reachable over the
Internet. If you change the settings in this screen, click
enable
. If you click
cancel
, the screen will return to its
previous settings. Click
disable
to disable Static NAT.
Static NAT Device
Click this drop-down menu to select name of the device that will function as the
default NAT destination.
IP Address
Displays the IP address of the device that will function as the default NAT
destination.
Page 68 / 126
030-300613 Rev A
68
August 2009
User Guide
VersaLink Wireless Gateway (Model 7500)
13.2.3
Port Triggering
The following screen will appear if you select
Security > Services > Port Triggering
from the main menu. This
screen allows you to configure port triggering. In port triggering, outbound traffic on predetermined ports
(“triggering ports”) causes inbound traffic to specific incoming ports to be dynamically forwarded to the initiating
host while the outbound ports are in use. This screen contains the Port Triggering Rule Configuration, which allows
you to forward a range of ports to the LAN only after outbound traffic has been sent to a specified range of ports.
Currently active port triggering ranges are displayed and can be removed by clicking the
delete
button.
Triggering Rule
Click this drop-down menu to select an active Port Triggering Rule.
enable
Click this button to open the
Apply Rule
screen (
Security > Services > Port
Triggering > Apply Rule
), which will show the details of the rule and allow you to
apply the selected rule. Refer to section 13.2.3.1, “Apply Rule.”
delete
Click this button to delete an existing Port Triggering rule.
Rule Name
Displays name of the Triggering Rule enabled from the drop-down menu.
Outgoing Protocol
Displays the protocol for outgoing connection from the local network.
Port Start
Displays the LAN side TCP/UDP start port.
Port End
Displays the LAN side TCP/UDP end port.
Incoming Protocol
Displays the incoming protocol for the triggered ports.
Port Start
Displays the WAN side TCP/UDP start port.
Port End
Displays the WAN side TCP/UDP end port.
New triggering rule
Click this button to add a new Port Triggering rule using the
New Triggering Rule
screen (
Security > Services > Port Triggering > New Triggering Rule
). Refer to
section 13.2.3.2, “New Triggering Rule.”
NOTE:
Not all of the options are available on every screen.
Page 69 / 126
030-300613 Rev A
69
August 2009
User Guide
VersaLink Wireless Gateway (Model 7500)
The following screen appears when you select a
Triggering Rule
from the drop-down menu, and click the
enable
button.
To apply the triggering rule, click the
apply
button and then
OK
. The
Port Triggering
screen will now display the
newly applied triggering rule.
Page 70 / 126
030-300613 Rev A
70
August 2009
User Guide
VersaLink Wireless Gateway (Model 7500)
13.2.3.1
Apply Rule
The following screen will appear if you click the
enable
button from the
Port Triggering
screen (
Security >
Services > Port Triggering > Apply Rule
). This screen allows you to apply a rule previously selected from the
Triggering Rule
drop-down menu.
Rule Name
Displays the name for the new port triggering rule being created.
Outgoing Protocol
Click this drop-down menu to select an outgoing connection from the local network
on a predetermined port or range of ports:
•
Tcp: Transmission Control Protocol.
•
Udp: User Datagram Protocol.
Port Start
Displays the local LAN side TCP/UDP start port.
Port End
Displays the local LAN side TCP/UDP end port.
Incoming Protocol
Click this drop-down menu to select the incoming protocol for the triggered ports:
•
Tcp: Transmission Control Protocol.
•
Udp: User Datagram Protocol.
Port Start
The WAN side TCP/UDP start port.
Port End
The WAN side TCP/UDP end port.
apply
Click this button to create a port triggering rule that can be enabled from the
Port
Triggering
screen’s
Triggering Rule
drop-down menu.
back
Click this button to return to the
Port Triggering
screen.

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