TRENDnet GREENnet TEW-639GR, Руководство пользователя, Страница: 13 / 52

13
WAN MTU Setting
The Maximum Transmission Unit (MTU) 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. t modes.
MAC Address Clone
Each networking device has it's own unique MAC address defined by the hardware
manufacturer. Some ISP's may check your computer's MAC address. Some ISP's record the
MAC address of the network adapter in the computer or router used to initially connect to their
service. The ISP will then only grant Internet access to requests from a computer or router with
this particular MAC address. This router has a different MAC address than the computer or
router that initially connected to the ISP. If you need to change the MAC address of the
rounter's WAN-side Ethernet interface, either type in an alternate MAC address (for example,
the MAC address of the router initially connected to the ISP) or copy the MAC address of a PC.
To copy the MAC address of the computer that initially connected to the ISP, connect to the
router using that computer and click the
Clone Your PC's MAC Address button. The WAN
interface will then use the MAC address of the network adapter in your computer.