ZyXEL Communications NVG2053, Руководство пользователя

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Chapter 7 Broadband
NVG2053 User’s Guide
86
7.3.2 PPPoE Encapsulation
The NVG2053 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 PPPoE 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 NVG2053 (rather than individual
computers), the computers on the LAN do not need PPPoE software installed,
since the NVG2053 does that part of the task. Furthermore, with NAT, all of the
LANs’ computers will have access.
VLAN Select Enable to add the VLAN tag (specified below) to the outgoing
traffic through this connection. Otherwise, select Disable.
802.1p IEEE 802.1p defines up to 8 separate traffic types by inserting a tag
into a MAC-layer frame that contains bits to define class of service.
Type the IEEE 802.1p priority level (from 0 to 7) to add to traffic
through this connection. The greater the number, the higher the
priority level.
This field is configurable when you select Enable in the VLAN field.
VLAN TAG Type the VLAN ID number (from 1 to 4094) for traffic through this
connection.
This field is configurable when you select Enable in the VLAN field.
Back Click Back to return to the previous screen.
Apply Click Apply to save your changes back to the NVG2053.
Cancel Click Cancel to begin configuring this screen afresh.
Table 19 Network > Broadband: DHCP Encapsulation
LABEL DESCRIPTION