Instructions

Chapter 9 WAN
NBG6604 User’s Guide
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9.4.2 PPPoE Encapsulation
The NBG6604 supports PPPoE (Point-to-Point Protocol over Ethernet). PPPoE is an IETF standard (RFC 2516)
specifying how a personal computer (PC) interacts with a broadband modem (DSL, cable, wireless,
etc.) connection. The PPP over Ethernet option is for a dial-up connection using PPPoE.
For the service provider, PPPoE offers an access and authentication method that works with existing
access control systems (for example Radius).
One of the benefits of PPPoE is the ability to let you access one of multiple network services, a function
known as dynamic service selection. This enables the service provider to easily create and offer new IP
services for individuals.
Operationally, PPPoE saves significant effort for both you and the ISP or carrier, as it requires no specific
configuration of the broadband modem at the customer site.
First DNS Server
Second DNS Server
Third DNS Server
Select Obtained From ISP if your ISP dynamically assigns DNS server information (and the
NBG6604's WAN IP address). The field to the right displays the (read-only) DNS server IP
address that the ISP assigns.
Select User-Defined if you have the IP address of a DNS server. Enter the DNS server's IP
address in the field to the right.
Select None if you do not want to configure DNS servers. If you do not configure a DNS
server, you must know the IP address of a computer in order to access it.
WAN MAC Address
Once the WAN MAC address is successfully configured, the address will be copied to the configuration file. It will
not change unless you change the setting or upload a different configuration file.
Factory default Select this option to have the WAN interface use the factory assigned default MAC
address. By default, the NBG6604 uses the factory assigned MAC address to identify itself.
Clone the computer's
MAC address - IP
Address
Select this option to have the WAN interface use a different MAC address by cloning the
MAC address of another device or computer. Enter the IP address of the device or
computer whose MAC you are cloning.
Set WAN MAC
Address
Select this option to have the WAN interface use a manually specified MAC address. Enter
the MAC address in the fields.
Automatically
configured by DHCPC
Select this to have the NBG6604 detect the relay server’s IP address automatically through
DHCP.
Manually Configured Select this if you have the IPv4 address of the relay server.
IPv4 mask length Enter the subnet mask number (1~32) for the IPv4 network.
Remote IPv4 Address Enter the IPv4 address of the remote gateway to which this interface tunnels traffic.
Auto-Subnet Configuration
Enable Auto-IP-
Change Mode
Select this option to have the NBG6604 change its LAN IP address to 10.0.0.1 or 192.168.1.1
accordingly when the NBG6604 gets a dynamic WAN IP address in the same subnet as the
LAN IP address.
Select this option to have the NBG6604 change its LAN IP address to 10.0.0.1 or 192.168.1.1
accordingly when the NBG6604 gets a DNS server IP address in the same subnet as the
LAN IP address.
The NAT, DHCP server and firewall functions on the NBG6604 are still available in this mode.
Apply Click Apply to save your changes back to the NBG6604.
Cancel Click Cancel to begin configuring this screen afresh.
Table 14 Network > WAN > Internet Connection: IPoE Encapsulation (continued)
LABEL DESCRIPTION