Advanced – D-Link DGL-4300 User Manual

Page 19

Using the Conﬁguration Interface

D-Link Systems, Inc.

All ﬁve modes have some common conﬁguration options. The Primary and Secondary DNS Server

settings are required for Static conﬁgurations and optional for DHCP and PPPoE conﬁgurations. The

Advanced options on the following page can be modiﬁed for any of the ﬁve connection modes.
You should be able to get the

Primary DNS and Secondary DNS Servers settings from your

router conﬁguration settings, ISP, or your network administrator. Only the primary DNS server

address is required, though it is best to have both the primary and secondary addresses.

Advanced

The Advanced options apply to all WAN modes.

This option is enabled by default allowing the router to select the typical

MTU settings for the selected WAN interface. If this option is unchecked,

the router will use the value assigned in the MTU ﬁeld.

The MTU (Maximum Transmission Unit) is a parameter that determines

the largest packet size (in bytes) that the router will send to the WAN. If

LAN devices send larger packets, the router will break them into smaller

packets. Ideally, you should set this to match the MTU of the connection

to your ISP. Typical values are 1500 bytes for an Ethernet connection and

1492 bytes for a PPPoE connection. If the router’s MTU is set too high,

packets will be fragmented downstream. If the router’s MTU is set too low,

the router will fragment packets unnecessarily and in extreme cases may be

unable to establish some connections. In either case, network performance

can suffer.
The WAN Port Speed is set to auto by default. If you have trouble connecting

the WAN port, you can select the connection type (10 or 100Mbps).
This option is disabled by default. By disabling the WAN ping, the router

will not respond to requests from a ping command received via the Internet.

Pinging public WAN IP addresses is a common method used by hackers

to test whether your WAN IP address is valid.
Some ISP’s may check your computer’s MAC address. Each networking

device has it’s own unique MAC address defined by the hardware

manufacturer. Some ISP’s record the MAC address of the network adapter

in the computer used to initially connect to their service. The ISP will then

only grant Internet access to requests from a computer with this particular

MAC address. The D-Link router has a different MAC address than the

computer that initially connected to the ISP. To resolve this problem, enable

this option.

When MAC Cloning is enabled, you can enter in a MAC address manually

in this ﬁeld or click the Clone Your Computer’s MAC Address button.

When this button is clicked, the WAN port will use the MAC Address of the

network adapter in the computer that you are using to access the router.

Use the Default MTU:

MTU:

WAN Port Speed:

Respond to WAN Ping:

MAC Cloning Enabled:

MAC Address:

Clone Your PC’s MAC

Address:

Basic > WAN > Advanced