D-Link DSL-522T manual Dynamic IP Parameters Description, Cloned MAC Address, MAC Address button

DSL-522T ADSL Router User Guide

Additional settings for Dynamic IP Address connections:

Dynamic IP Parameters	Description
Connection Type	This specifies the connection type and encapsulation method used for your
	Dynamic IP Address connection. The options available are Bridged IP LLC
	or Bridged IP VC-Mux.
Cloned MAC Address	This is not always necessary, but may be required for some ISPs. Type in
	the MAC address of your computer’s Ethernet adapter in the Cloned MAC
	Address field and click the Clone MAC Address button. This will copy the
	information to a file used by the Router to present to the ISP’s server used
	for DHCP. Some ISPs record the unique MAC address of your computer’s
	Ethernet adapter when you first access their network. If you want to later
	replace the cloned MAC address with the factory default setting, type in all
	zeros - 0:0:0:0:0:0 - and click the Clone MAC Address button.
Cloned MAC Address	To clone the MAC address of your computer’s Ethernet adapter, type in the
	MAC address in the Cloned MAC Address field and then click this Clone
	MAC Address button.
MTU	The Maximum Transmission Unit size may be changed if you want to
	optimize efficiency for uploading data through the WAN interface. The
	default setting (1400 bytes) should be suitable for most users. Some user
	may want to adjust the setting to optimize performance for wireless traffic or
	when low latency is desired (such as with Internet gaming). It is highly
	recommended that the user research how adjusting the MTU may affect
	network traffic for better or worse.
NAT	Network Address Translation may be enabled or disabled with the pull-
	down menu. Keep in mind that disabling NAT allows only a single computer
	to be used for Internet access through the Router. NAT is enabled and
	disabled for the Router on all connections (i.e. Pvc0 – Pvc7) if your Router
	is set up for multiple virtual connections.
Firewall	Use this to universally enable or disable the Firewall and Filter features
	available in the Router. If you disable this you will not be able to configure
	settings in the Firewall Configuration window or Filters windows in the
	Advanced directory.

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