DG-BG4300N User Manual

7.5 Dynamic DNS

Each time your device connects to the Internet, your ISP assigns a different IP address to your device.

In order for you or other users to access your device from the WAN-side, you need to manually track

the IP that is currently used. The Dynamic DNS feature allows you to register your device with a DNS

server and access your device each time using the same host name. The Dynamic DNS page allows

you to enable/disable the Dynamic DNS feature.

7.5.1 Dynamic DNS ( DDNS) Configuration

On the Dynamic DNS page, configure the following fields:

Field

Description

Enable

Check this item to enable this registration account for the DNS server.

DDNS provider

There are two DDNS providers to be selected in order to register your

device with:

DynDNS

and

TZO

. A charge may occur depends on the

service you select.

Hostname

Domain name to be registered with the DDNS server.

DG-BG4300N User Manual

Interface

This field defaults to your device’s WAN interface over which your

device will be accessed.

Username

User-name assigned by the DDNS service provider.

Password

Password assigned by the DDNS service provider.

DG-BG4300N User Manual

8. Firewall Setup

Firewall contains several features that are used to deny or allow traffic from passing through the device.

8.1 MAC Filtering

The MAC filtering feature allows you to define rules to allow or deny frames through the device based on

source MAC address, destination MAC address, and traffic direction.

Fields on the first setting block:

Field

Description

Outgoing Default Action

Specify the default action on the LAN to WAN bridging/forwarding path.

Incoming Default Action

Specify the default action on the WAN to LAN bridging/forwarding path.

Fields on the second setting block:

Field

Description

Rule Action

Deny or allow traffic when matching this rule.

Direction

Traffic bridging/forwarding direction.

Source MAC Address

The source MAC address. It must be xxxxxxxxxxxx format. Blanks can

be used in the MAC address space and are considered as don’t care.

Destination MAC Address

The destination MAC address. It must be xxxxxxxxxxxx format. Blanks

can be used in the MAC address space and are considered as don’t

DG-BG4300N User Manual

care.

8.2 IP/Port Filtering Setup

8.2.1 IP/Port Filtering

The IP/Port filtering feature allows you to deny/allow specific services or applications in the forwarding

path.

Fields on the first setting block:

Field

Description

Outgoing Default Action

Specify the default action on the LAN to WAN forwarding path.

Incoming Default Action

Specify the default action on the WAN to LAN forwarding path.

Fields on the second setting block:

Field

Description

Rule Action

Deny or allow traffic when matching this rule.

Direction

Traffic forwarding direction.

Protocol

There are 3 options available: TCP, UDP and ICMP.

Source IP Address

The source IP address assigned to the traffic on which filtering is

applied.

Source Subnet Mask

Subnet-mask of the source IP.

Source Port

Starting and ending source port numbers.

Destination IP Address

The destination IP address assigned to the traffic on which filtering is

applied.

DG-BG4300N User Manual

Destination Subnet Mask

Subnet-mask of the destination IP.

Destination Port

Starting and ending destination port numbers.