D-Link DGL-4300 manual Use the Default MTU WAN Port Speed, MAC Address

Advanced

The Advanced options apply to all WAN modes.

Using the Configuration Interface

MTU:

Use the Default MTU:

WAN Port Speed:

Respond to WAN Ping:

MAC Cloning Enabled:

MAC Address:

Clone Your PC’s MAC Address:

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.

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 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.

Basic > WAN > Advanced

19 D-Link Systems, Inc.