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Chapter 9 WAN
NBG7815 User’s Guide
83
9.4.2 PPPo E Enc a psula tio n
The NBG7815 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 o ve r Ethe rne t
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.
By implementing PPPoE directly on the NBG7815 (rather than individual computers), the computers on
the LAN do not need PPPoE software installed, since the NBG7815 does that part of the task.
Furthermore, with NAT, all of the LANs’ computers will have access.
First DNS Server
Second DNS Server
Third DNS Server
Select
Use r- De fine d
and enter the IPv6 DNS server address assigned by the ISP to have the
NBG7815 use the IPv6 DNS server addresses you configure manually.
Select
No ne
if you do not want to configure DNS servers. If you do not configure a DNS
server, you must know the IPv6 address of a computer in order to access it.
Apply Click
Apply
to save your changes back to the NBG7815.
Cancel Click
C a nc e l
to begin configuring this screen afresh.
Table 22 Network > WAN > Internet Connection: IPoE Encapsulation (continued)
LABEL DESC RIPTIO N