User manual

Connection Type — Select “Continuous,” “Connect on Demand” or
“Manual.”
Idle Time — When the connection type is set to “Connect on Demand,”
you can set the idle time.
MTU Size — The normal MTU (maximum transmission unit) value for
most Ethernet networks is 1492 Bytes. For some ISPs, you need to
reduce the MTU. This is rarely required, however, and shouldn’t be
done unless you’re sure it’s necessary for your ISP connection.
DNS — Select “Attain DNS Automatically” or “Set DNS Manually.”
Clone MAC Address — Enter a MAC address, then click “Apply.”
Enable UpnP — The Universal
Plug and Play (UPnP) feature
lets devices access the local host
resources or devices as needed.
UPnP devices can be automatically
discovered by the UPnP service
application on the LAN.
2.4 Firewall
2.4.1 Port Filtering
Entries on this screen
are used to restrict
certain types of data
packets from your
local network to the
Internet through the
gateway. Using such
lters can be helpful
in securing/restricting
your local network.
Enable Port Filtering — Select to modify the port lter.
Port Range — Enter the lter port range; for example, 20-220.
Protocol — Select “TCP,” “UDP” or “Both.”
Current Filter Table — This displays the list of port lters.
2.4.2 IP Filtering
Similar to Port Filtering (above), with similar options.
Enable IP Filtering — Select to modify the IP lter.
Local IP Address — Enter the lter IP address(es); for example,
192.168.1.23.
Protocol — Select “TCP,” “UDP” or “Both.”
Current Filter Table — This displays the list of IP lters.
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