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Advanced Settings
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HSPA+ 42Mbps WiFi Router User Guide
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9 Advanced Settings
9.1 LAN
This screen allows you to configure the Local Area Network (LAN) interface on your Router.
See the field descriptions below for more details.
Option
Description
IP Address
Enter the IP address for the LAN interface
Subnet Mask
Enter the subnet mask for the LAN interface
Enable IGMP Snooping
Enable by ticking the box
Standard Mode: In standard mode, multicast traffic will flood to all bridge ports when no client
subscribes to a multicast group.
Blocking Mode: In blocking mode, the multicast data traffic will be blocked. When there are no client
subscriptions to a multicast group, it will not flood to the bridge ports.
Enable LAN side Firewall
Check box to enable Firewall on LAN
Disable DHCP Server
Disables the DHCP server. Only to be done if Static IP address is set up
Enable DHCP Server
Select Enable DHCP server and enter your starting and ending IP addresses and the lease time. This
setting configures the router to automatically assign IP, default gateway and DNS server addresses to
every DHCP client on your LAN
Enable DHCP Server Relay
To relay DHCP requests from the subnet with no DHCP server on it to a DHCP server on other subnets.
DHCP Server Relay is disabled by default. To access enable DHCP relay, please un-tick NAT enable first,
that means to disable NAT first, and then press save button.
Configure the second IP Address and
Subnet Mask for LAN Interface
Configure a second IP address by ticking the checkbox shown below and enter the following information:
Enter the secondary IP address for the LAN interface.
Enter the secondary subnet mask for the LAN interface.
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NETCOMM LIBERTY™ SERIES
- HSPA+ 42Mbps WiFi Router
9.2 NAT
9.2.1 Port Forwarding
Port Forwarding allows you to direct incoming traffic from the Internet side (identified by Protocol and External port) to the internal server
with a private IP address on the LAN side. The Internal port is required only if the external port needs to be converted to a different port
number used by the server on the LAN side. A maximum of 32 entries can be configured.
To add a Virtual Server, click the Add button. The following screen will display.
Option
Description
Select a Service or Custom Server
User should select the service from the list. Or create a custom server and
enter a name for the server
Server IP Address
Enter the IP address for the server.
External Port Start
Enter the starting external port number (when you select Custom Server).
When a service is selected the port ranges are automatically configured.
External Port End
Enter the ending external port number (when you select Custom Server).
When a service is selected the port ranges are automatically configured.
Protocol
User can select from: TCP, TCP/UDP or UDP.
Internal Port Start
Enter the internal port starting number (when you select Custom Server).
When a service is selected the port ranges are automatically configured
Internal Port End
Enter the internal port ending number (when you select Custom Server).
When a service is selected the port ranges are automatically configured.
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HSPA+ 42Mbps WiFi Router User Guide
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9.2.2 Port Triggering
Some applications require specific ports in the Router’s firewall to be open for access by remote parties. Port Triggering opens up the ‘Open
Ports’ in the firewall when an application on the LAN initiates a TCP/UDP connection to a remote party using the ‘Triggering Ports’.
The Router allows the remote party from the WAN side to establish new connections back to the application on the LAN side using the ‘Open
Ports’. A maximum 32 entries can be configured.
To add a Trigger Port, simply click the Add button. The following will be displayed.
Option
Description
Select an Application or Custom Application
User should select the application from the list. Or the user can enter the
name of their choice.
Trigger Port Start
Enter the starting trigger port number (when you select custom application).
When an application is selected, the port ranges are automatically configured.
Trigger Port End
Enter the ending trigger port number (when you select custom application).
When an application is selected, the port ranges are automatically configured.
Trigger Protocol
TCP, TCP/UDP or UDP.
Open Port Start
Enter the starting open port number (when you select custom application).
When an application is selected, the port ranges are automatically configured.
Open Port End
Enter the ending open port number (when you select custom application).
When an application is selected, the port ranges are automatically configured.
Open Protocol
TCP, TCP/UDP or UDP
9.2.3 DMZ Host
Your Router will forward IP packets from the Wide Area Network (WAN) that do not belong to any of the applications configured in the Virtual
Servers table to the DMZ host computer.
Enter the computer’s IP address and click Apply to activate the DMZ host. Clear the IP address field and click Save/Apply to deactivate the
DMZ host.
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HSPA+ 42Mbps WiFi Router User Guide
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NETCOMM LIBERTY™ SERIES
- HSPA+ 42Mbps WiFi Router
9.3 Security
9.3.1 IP Filtering
The IP Filtering screen sets filter rules that limit incoming and outgoing IP traffic. Multiple filter rules can be set with at least one limiting
condition. All conditions must be fulfilled before individual IP packets can pass the filter.
Outgoing IP Filter
The default setting for Outgoing traffic is ACCEPTED. Under this condition, all outgoing IP packets that match the filter rules will be BLOCKED.
To add a filtering rule, click the Add button. The following screen will display.
Filter Name
The filter rule label
Protocol
TCP, TCP/UDP, UDP or ICMP Source IP address
Source IP address
Enter source IP address Source Subnet Mask
Destination IP address
Enter source subnet mask
Source Port (port or port:port)
Enter source port number or port range
Destination IP address
Enter destination IP address
Destination Subnet Mask
Destination Subnet Mask
Destination port (port or port:port)
Enter destination port number or range
Click Apply/Save to save and activate the filter.

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