Netcore NW705P User Manual page 34

Clone MAC address
The WAN port of router has a unique MAC address assigned by manufacturer; it called as
"Default MAC". The "Clone MAC" is used for some special situations; For example, ISP only
allows certain MAC address to access the Internet, thus you can modify your WAN port's MAC
address in accord with the requirement of ISP, avoiding ISP's detection
MTU
The MTU (Maximum Transmission Unit) setting specifies the largest packet size permitted for
network transmission. Most DSL users should use the value 1492.You can set MTU manually,
and you should leave this value in the 1200 to 1500 range. If the value you set is not in accord
with the value ISP provide, it may causes some problems, such as fail to send Email, or fail to
browse website. So if that happened, you can contact your ISP for more information and correct
your router's MTU value
Primary DNS
DNS server is used for resolve domain name. Your ISP will provide you with at least one DNS
IP address, input IP address of your DNS server in this field
Secondary DNS
Input IP address of backup DNS server, or you can leave this field blank
Figure 4-10