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Page 101 / 296 Scroll up to view Page 96 - 100
NBG334W User’s Guide
101
C
HAPTER
7
WAN
This chapter describes how to configure WAN settings.
7.1
WAN Overview
See the chapter about the connection wizard for more information on the fields in the WAN
screens.
7.2
WAN MAC Address
The MAC address screen allows users to configure the WAN port's MAC address by either
using the factory default or cloning the MAC address from a computer on your LAN. Choose
Factory Default
to select the factory assigned default MAC Address.
Otherwise,
click
Clone the computer's MAC address - IP Address
and enter the IP address
of the computer on the LAN whose MAC you are cloning. Once it is successfully configured,
the address will be copied to the rom file (ZyNOS configuration file). It will not change unless
you change the setting or upload a different ROM file.
It is recommended that you clone the
MAC address prior to hooking up the WAN Port.
7.3
Multicast
Traditionally, IP packets are transmitted in one of either two ways - Unicast (1 sender - 1
recipient) or Broadcast (1 sender - everybody on the network). Multicast delivers IP packets to
a group of hosts on the network - not everybody and not just 1.
IGMP (Internet Group Multicast Protocol) is a network-layer protocol used to establish
membership in a Multicast group - it is not used to carry user data. IGMP version 2 (RFC
2236) is an improvement over version 1 (RFC 1112) but IGMP version 1 is still in wide use. If
you would like to read more detailed information about interoperability between IGMP
version 2 and version 1, please see sections 4 and 5 of RFC 2236. The class D IP address is
used to identify host groups and can be in the range 224.0.0.0 to 239.255.255.255. The address
224.0.0.0 is not assigned to any group and is used by IP multicast computers. The address
224.0.0.1 is used for query messages and is assigned to the permanent group of all IP hosts
(including gateways). All hosts must join the 224.0.0.1 group in order to participate in IGMP.
The address 224.0.0.2 is assigned to the multicast routers group.
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Chapter 7 WAN
NBG334W User’s Guide
102
The NBG334W supports both IGMP version 1 (
IGMP-v1
) and IGMP version 2 (
IGMP-v2
).
At start up, the NBG334W queries all directly connected networks to gather group
membership. After that, the NBG334W periodically updates this information. IP multicasting
can be enabled/disabled on the NBG334W LAN and/or WAN interfaces in the web
configurator (
LAN
;
WAN
). Select
None
to disable IP multicasting on these interfaces.
7.4
Internet Connection
Use this screen to change your NBG334W’s Internet access settings. Click
Network
>
WAN
.
The screen differs according to the encapsulation you choose.
7.4.1
Ethernet Encapsulation
This screen displays when you select
Ethernet
encapsulation.
Figure 55
Network > WAN > Internet Connection: Ethernet Encapsulation
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Chapter 7 WAN
NBG334W User’s Guide
103
The following table describes the labels in this screen.
7.4.2
PPPoE Encapsulation
The NBG334W 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.
Table 37
Network > WAN > Internet Connection: Ethernet Encapsulation
LABEL
DESCRIPTION
Encapsulation
You must choose the Ethernet option when the WAN port is used as a regular
Ethernet.
Service Type
Choose from
Standard
,
RR-Telstra
(RoadRunner Telstra authentication method),
RR-Manager
(Roadrunner Manager authentication method),
RR-Toshiba
(Roadrunner Toshiba authentication method) or
Telia Login
.
The following fields do not appear with the
Standard
service type.
WAN IP Address Assignment
Get automatically
from ISP
Select this option If your ISP did not assign you a fixed IP address. This is the
default selection.
Use Fixed IP
Address
Select this option If the ISP assigned a fixed IP address.
IP Address
Enter your WAN IP address in this field if you selected
Use Fixed IP Address
.
IP Subnet
Mask
Enter the
IP Subnet Mask
in this field.
Gateway IP
Address
Enter a
Gateway IP Address
(if your ISP gave you one) in this field.
DNS Servers
First DNS Server
Second DNS
Server
Third DNS Server
Select
From ISP
if your ISP dynamically assigns DNS server information (and the
NBG334W'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. If you chose
User-Defined
, but leave
the IP address set to 0.0.0.0,
User-Defined
changes to
None
after you click
Apply
. If you set a second choice to
User-Defined
, and enter the same IP
address, the second
User-Defined
changes to
None
after you click
Apply
.
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
The MAC address section allows users to configure the WAN port's MAC address
by either using the NBG334W’s MAC address, copying the MAC address from a
computer on your LAN or manually entering a MAC address.
Factory default
Select
Factory default
to use the factory assigned default MAC Address.
Clone the
computer’s MAC
address
Select
Clone the computer's MAC address - IP Address
and enter the IP
address of the computer on the LAN whose MAC you are cloning. Once it is
successfully configured, the address will be copied to the rom file (ZyNOS
configuration file). It will not change unless you change the setting or upload a
different ROM file.
Set WAN MAC
Address
Select this option and enter the MAC address you want to use.
Apply
Click
Apply
to save your changes back to the NBG334W.
Reset
Click
Reset
to begin configuring this screen afresh.
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Chapter 7 WAN
NBG334W User’s Guide
104
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 NBG334W (rather than individual computers), the
computers on the LAN do not need PPPoE software installed, since the NBG334W does that
part of the task. Furthermore, with NAT, all of the LANs’ computers will have access.
This screen displays when you select
PPPoE
encapsulation.
Figure 56
Network > WAN > Internet Connection: PPPoE Encapsulation
Page 105 / 296
Chapter 7 WAN
NBG334W User’s Guide
105
The following table describes the labels in this screen.
Table 38
Network > WAN > Internet Connection: PPPoE Encapsulation
LABEL
DESCRIPTION
ISP Parameters for Internet Access
Encapsulation
The
PPP over Ethernet
choice is for a dial-up connection using PPPoE. The
NBG334W supports PPPoE (Point-to-Point Protocol over Ethernet). PPPoE is an
IETF Draft standard (RFC 2516) specifying how a personal computer (PC) interacts
with a broadband modem (i.e. xDSL, cable, wireless, etc.) connection.
Operationally, PPPoE saves significant effort for both the end user and ISP/carrier,
as it requires no specific configuration of the broadband modem at the customer
site. By implementing PPPoE directly on the router rather than individual
computers, the computers on the LAN do not need PPPoE software installed, since
the router does that part of the task. Further, with NAT, all of the LAN's computers
will have access.
Service Name
Type the PPPoE service name provided to you. PPPoE uses a service name to
identify and reach the PPPoE server.
User Name
Type the user name given to you by your ISP.
Password
Type the password associated with the user name above.
Retype to
Confirm
Type your password again to make sure that you have entered is correctly.
Nailed-Up
Connection
Select
Nailed-Up Connection
if you do not want the connection to time out.
Idle Timeout
This value specifies the time in seconds that elapses before the router
automatically disconnects from the PPPoE server.
WAN IP Address Assignment
Get automatically
from ISP
Select this option If your ISP did not assign you a fixed IP address. This is the
default selection.
Use Fixed IP
Address
Select this option If the ISP assigned a fixed IP address.
My WAN IP
Address
Enter your WAN IP address in this field if you selected
Use Fixed IP Address
.
Remote IP
Address
Enter the remote IP address (if your ISP gave you one) in this field.
Remote IP
Subnet Mask
Enter the remote IP subnet mask in this field.
DNS Servers
First DNS Server
Second DNS
Server
Third DNS Server
Select
From ISP
if your ISP dynamically assigns DNS server information (and the
NBG334W'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. If you chose
User-Defined
, but leave
the IP address set to 0.0.0.0,
User-Defined
changes to
None
after you click
Apply
.
If you set a second choice to
User-Defined
, and enter the same IP address, the
second
User-Defined
changes to
None
after you click
Apply
.
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
The MAC address section allows users to configure the WAN port's MAC address
by using the NBG334W’s MAC address, copying the MAC address from a
computer on your LAN or manually entering a MAC address.
Factory default
Select
Factory default
to use the factory assigned default MAC Address.

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