User manual

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• The public IP address assigned by the remote side using the PPP/IPCP
protocol is actually not used on the WAN PPP interface. Instead, it is
forwarded to the PC LAN interface through DHCP. Only one PC on the
LAN can be connected to the remote, since the DHCP server within the
device has only a single IP address to assign to a LAN device.
• The device becomes the default gateway and DNS server to the PC
through DHCP using the LAN interface IP address.
• The device extends the IP subnet at the remote service provider to the
LAN PC. i.e. the PC becomes a host belonging to the same IP subnet.
• The device bridges the IP packets between WAN and LAN ports, unless
the packet is addressed to the device’s LAN IP address.
Enable NAT
If the LAN is configured with a private IP address, the user should select this
checkbox. The NAT submenu will display after the next reboot. The user can then
configure NAT-related features. If a private IP address is not used on the LAN side,
this checkbox should not be selected so as to free up system resources.
Enable Fullcone NAT: Known as one-to-one NAT, all requests from the same
internal IP address and port are mapped to the same external IP address and port.
An external host can send a packet to the internal host, by sending a packet to the
mapped external address.
Enable Firewall
If the firewall checkbox is selected, the Security submenu will display after the next
reboot. The user can then configure firewall features. If the firewall is not used,
this checkbox should not be selected so as to free up system resources.
Use Static IP Address
Unless your service provider specially requires this setup, do not select it.
If selected, enter your static IP address.
Retry PPP password on authentication error
Tick the box to select.
Enable PPP Debug Mode
Enable the PPPoE debug mode. The system will put more PPP connection
information in System Log. This is used for debugging purposes.
Bridge PPPoE Frames Between WAN and Local Ports
If Enabled, the function can create a local PPPoE connection to the WAN side.
Fixed MTU
Select the checkbox to enable Fixed MTU and adjust the MTU value for WAN
Interface, PPPoE and PPPoA. Default values are 1492 for PPPoE and 1500 for
PPPoA.
STEP 5: Click Next to display the following screen.