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ADSL2+ Router User’s Guide
4-9
5.
NAT
should remain enabled. If you disable NAT, you not be able to use more than one computer for
Internet connections. NAT is enabled and disabled system-wide, therefore if you are using multiple
virtual connections, NAT will disabled on all connections.
6. The
Firewall
should remain enabled for most users. If you choose to disable this you will not be able to
use the features configured in the Firewall and Filters menus located in the Advanced directory. See
the next chapter for more details on these menus.
7. Most users will not need to change
ATM
settings. If this is the first time you are setting up the ADSL
connection it is recommended that you leave the
Service Category
settings at the default values until
you have established the connection. See the table on page
האיגש
!
תרדגומ
הניא
הינמיסה
.
for a description
of the parameters available for ATM traffic shaping.
8. When you are satisfied that all the WAN settings are configured correctly, click on the
Apply
button.
Additional settings for Dynamic IP Address connections:
Dynamic IP
Address
Parameters
Description
Connection
Type
This specifies the connection type and encapsulation method used for your Dynamic IP
Address connection. The options available are
Bridged IP LLC
or
Bridged IP VC-MUX
.
Default
Route
Enabled/Disabled
−
this sets the router as the default route between the PCs on your LAN
and the WAN (Internet). This should normally be enabled.
NAT
Enabled/Disabled
−
this enables or disables NAT (Network Address Translation) on the
router.
This should normally be enabled.
IGMP
Enabled/Disabled
−
this enables or disables IGMP (Internet Group Management Protocol) on
the router.
This should normally be enabled.
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Page 22 / 51
C2-010 / C2-010-I ADSL2+ Router User’s Guide
4.2.4
PPPoE and PPPoA Connection for WAN
Follow the instructions below to configure the Router to use a PPPoE or PPPoA for the Internet
connection. Make sure you have all the necessary information before you configure the WAN connection.
Figure 4-7 WAN Settings Menu – PPPoE/PPPoA
1. Under the
ATM Interface
settings at the top of the menu (including
VPI
,
VCI
, and
Virtual Circuit
) should
not be changed unless you have been instructed to change them. However, if you are instructed to change
the
VPI
or
VCI
values, type in the values assigned for your account. Leave the
ATM Interface
and
Virtual
Circuit
setting at the default (
Pcv0
and
Enabled
) values for now. This can be used later if you are
configuring multiple virtual circuits for your ADSL service.
2. Under the
PPPoE/PPPoA
heading, type the
User Name
and
Password
used for your ADSL account. A
typical User Name will be in the form [email protected], the Password may be assigned to you by your
ISP or you may have selected it when you set up the account with your ISP.
3. Choose the
Connection Type
from the pull-down menu located under the User Name and Password entry
fields. This defines both the connection protocol and encapsulation method used for your ADSL service.
The available options are
PPPoA VC-MUX, PPPoA LLC
and
PPPoE LLC.
If have not been provided
specific information for the Connection Type setting, leave the default setting.
4. Leave the
MTU
value at the default setting (default = 1400) unless you have specific reasons to change
this (see table below).
5. Leave the
MRU
value at the default setting (default = 1492) unless you have specific reasons to change
this (see table below).
6. Leave the
Default Route
enabled if you want to use the Router as the default route to the Internet for your
LAN. Whenever a computer on the LAN attempts to access the Internet, the Router becomes the Internet
gateway to the computer. If you have an alternative route for Internet traffic you may disable this without
effecting the Router’s connection.
4-10
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Page 23 / 51
ADSL2+ Router User’s Guide
4-11
7.
NAT
should remain enabled. If you disable NAT, you not be able to use more than one computer for
Internet connections. NAT is enabled and disabled system-wide, therefore if you are using multiple virtual
connections, NAT will disabled on all connections.
8. The
Firewall
should remain enabled for most users. If you choose to disable this you will not be able to
use the features configured in the Firewall and Filters menus located in the Advanced directory. See the
next chapter for more details on these menus.
9. Typically the globally IP settings (i.e. IP address for the WAN interface) for a PPPoA or PPPoA connection
will use Dynamic IP assignment from the ISP.
Some accounts may be assigned a specific global IP
address. If you have been give an IP address for you PPPoE/PPPoA connection, select the
Static IP
option from the
IP Control
pull-down menu. This menu can be used to configure the WAN port as an
Unnumbered IP interface. (See table below for Unnumbered IP)
10.
Most users will not need to change
ATM
settings. If this is the first time you are setting up the ADSL
connection it is recommended that you leave the
Service Category
settings at the default values until
you have established the connection. See the table on page
האיגש
!
תרדגומ
הניא
הינמיסה
.
for a description of
the parameters available for ATM traffic shaping.
11.
When you are satisfied that all the WAN settings are configured correctly, click on the
Apply
button.
PPPoE/PPPoA
Parameters
Description
User Name
For PPP connections, a User Name and Password are used to identify and verify your
account to the ISP. Enter the User Name for your ADSL service account. User names and
passwords are case-sensitive, so enter this information exactly as given to you by your
ISP.
Password
Together with the User Name, this is used to verify your account to the ISP. Enter the
Password exactly as given to you by your ISP.
Connection
Type
This specifies the protocol (PPPoE or PPPoA) and the encapsulation method (LLC or
VC-MUX) used for your connection. The options available are
PPPoE LLC
,
PPPoA LLC
or
PPPoA VC-MUX
.
MRU
Maximum Received Unit size for downloading data. Most users will be happy with the
default setting (1492 bytes). However this may also be optimized for fast downloads of
general bulk Internet traffic, for low latency or for downloading to computers on the
Wireless LAN. As with the MTU setting, the user should carefully consider how changing
the MRU may effect Internet downloads for all systems on your LAN.
Authentication
This allows you to choose the protocol the router will use to communicate your Username
and Password for your Internet account.
PAP
and
CHAP
are both supported.
Your ISP
should provide you with the correct choice.
Obtain DNS
Automatically
This allows you to specify if the router will use the DNS server address supplied by your
ISP or if it will use a DNS server address you supply under the
DNS
directory.
Default Route
When this is enabled, the Router will be considered to be the primary gateway to the
Internet and WAN for systems on your network. If you are using the Router on a network
with one or more alternative gateway routers, you may prefer to disable this if you will use
another router as the primary gateway.
NAT
Network Address Translation may be enabled or disabled with the pull-down menu. Keep
in mind that disabling NAT allows on a single computer to be used for Internet access
through the Router. NAT is enabled and disable for the Router on all connections (i.e.
Pvc0 – Pvc7) if your Router is set up for multiple virtual connections.
IGMP
Enabled/Disabled
−
this enables or disables IGMP (Internet Group Management
Protocol) on the router.
This should normally be enabled.
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C2-010 / C2-010-I ADSL2+ Router User’s Guide
4-12
4.3 DHCP Configuration
To display the
DHCP Server
menu, click the
DHCP
button in the
Home
directory. Active DHCP Clients
appear listed in the
DHCP Client Table
below the configuration menu. Information about DHCP clients
includes the IP address, MAC address, host name and lease time are displayed in the list.
Figure 4-8. Configure DHCP server settings for the LAN
The three options for DHCP service are as follows:
You may use the ADSL2+ Router as a DHCP server for your LAN.
You can disable DHCP service and manually configure IP
settings
for all workstations.
You will use a DHCP service provided by your ISP, in which case DHCP should be disabled on the
ADSL2+ Router.
4.3.1 DHCP Server Settings for the LAN
The default setting of ADSL2+ Router 's DHCP server is disabled. While you click to select the
Enabled
radio button under the
DHCP Server
option, the device will become the default gateway for DHCP clients
that connected to it. When the ADSL2+ Router is used for DHCP it becomes the default gateway for DHCP
client connected to it. Keep in mind that if you change the IP address of the ADSL2+ Router, you must
change the range of IP addresses in the pool used for DHCP on the LAN.
4.3.2 Use the ADSL2+ Router for DHCP
To use the built-in DHCP server, click to select the
DHCP Server
option if it is not already selected. The
IP Address Pool settings can be adjusted so that up to 253IP addresses are available for use. The
Starting
IP Address
is the lowest available IP address (default = 192.168.1.2). If you change the IP address of the
ADSL2+ Router this will change automatically to be 1 more that the IP address of the ADSL2+ Router. The
Ending IP Address
is the highest IP address number in the pool (default = 192.168.1.33). Select the
Lease
Time
from the pull-down menu. This is the amount of time that a workstation is allowed to reserve an IP
address in the pool if the workstation is disconnected from the network or powered off. Lease time options
vary from 1 hour to 1 week. DHCP client workstations on your LAN must be properly configured to use
DHCP service. Be sure to save the new settings.
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Page 25 / 51
ADSL2+ Router User’s Guide
4.3.3 Disabling the DHCP Server
To disable DHCP, click to select the
No DHCP
radio button and click on the
Apply
button.
4-13
4.4 DNS Server Setting
The ADSL2+ Router is configured by default to forward the DNS server address you enter in the DNS
page, shown below, to all DHCP clients on your LAN. When DNS is enabled, the DNS clients on the LAN
will automatically get DNS settings relayed from the ADSL2+ Router as they are entered here. Alternatively, if
DNS Status
is disabled, workstations must be configured to initiate DNS requests for each session, and
therefore you must configure DNS settings for the workstations.
Figure 4-9. Configure DNS IP address
Usually an ISP will provide you with one or two DNS server IP addresses. Enter these IP addresses in
the available entry fields for the
Primary DNS Server
and the
Secondary DNS Server
.
If you do not want to use the ADSL2+ Router as a DNS proxy agent, change the
DNS Status
to
Disabled
.
When you have configured the DNS settings as desired, click the
Apply
button. Be sure to save the
settings.
4.5
Configuring the LAN Connection
The first step in configuring your LAN is to determine the IP address scheme that the computers on your
LAN will use.
The 192.168.1.x (where x can range from 2 to 254) IP address range has been dedicated for
home and small office use.
The ADSL2+ Router ADSL router is configured with a default IP address of
192.168.1.1, and a subnet mask of 255.255.255.0.
The next IP address available for use on a LAN is
192.168.1.2.
This is why the IP address range begins with an x = 2, because when x = 1, that identifies the
ADSL2+ Router on your LAN.
The IP address where x = 255 has a special meaning (it is the broadcast
address for your LAN). When you configure PCs on your LAN, the ADSL2+ Router’s IP address
(192.168.1.1) will become the Default Gateway IP address for all PCs on your LAN.
You can configure the ADSL2+ Router’s LAN IP address to any IP addressing scheme that meets the
needs of your LAN.
Many users will find it convenient to use the default settings together with the DHCP
service to manage the IP settings for their LANs. The IP address of the ADSL2+ Router is the base address
used for DHCP. In order to use the ADSL2+ Router for DHCP on your LAN, the IP address pool used for
DHCP must be compatible with the IP address of the ADSL2+ Router. The IP addresses available in the
DHCP IP address pool will change automatically if you change the IP address of the ADSL2+ Router. See
the next section for information on DHCP setup, as described below.
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