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Page 36 / 92 Scroll up to view Page 31 - 35
DSL-G604T 54Mbps Wireless ADSL2/2+ Modem/Router Manual
Figure 4- 5. WAN Settings window for Static IP Address
This window holds the following fields for the user to configure.
Connection Type
This field allows the user to choose the connection type used to connect your router
to your ISP. The user may choose between
1483 Bridged IP LLC
,
1483 Bridged IP
VC-Mux
,
1483 Routed IP LLC
and
1483 Routed IP VC-Mux
. The correct choice
should be told to you by your ISP.
IP Address
Enter the IP address based on the information provided to you by your ISP.
Subnet Mask
Enter the Subnet Mask based on the information provided to you by your ISP.
Gateway Address
Enter the Default Gateway based on the information provided to you by your ISP.
Primary DNS
Address
This entry is for the IP address of your primary domain name server, which should
also be provided to you by your ISP. The router will first try the
Primary DNS
Address
to resolve a website’s URL IP address. If this IP address fails, the router
will then try the
Secondary DNS Address
.
Secondary DNS
Address
The IP address of the secondary domain name server will be used to resolve a
website’s URL IP address if the
Primary DNS Address
fails. The information in this
field should also be provided by your ISP.
MTU
The Maximum Transmission Unit (
MTU
) is a link layer restriction on the maximum
number of bytes of data in a single transmission. The default size is 1400 bytes per
packet.
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DSL-G604T 54Mbps Wireless ADSL2/2+ Modem/Router Manual
NAT
NAT
improves network security in effect by hiding the private network behind one
global and visible IP address. NAT address mapping can also be used to link two IP
domains via a LAN-to-LAN connection. Use the pull-down menu to Enable or Disable
NAT on the Router
Firewall
The
Firewall
allows the Router to enforce policies to protect against certain kinds of
attacks.
To enable the firewall on the Router, use the pull-down menu and select
Enabled
.
Click
Apply
to set the Static IP address for the DSL-G604T.
PPPoE/PPPoA
Selecting this option in the WAN Settings will change your screen to look like the one seen below.
PPP or Point-to-Point protocol is a standard method of establishing a network connection/session
between networked devices. Different forms of PPP include PPPoA and PPPoE, and they involve an
authentication process that requires a username and password to gain access to the network. PPPoE
(PPP over Ethernet), as described in RFC 2516, is a method of using PPP through the Ethernet
network. PPPoA (PPP over ATM) configuration is over ATM and requires the same basic information
as the previously discussed PPPoE. Both configuration menus are identical. To configure the
connection for PPPoE/PPPoA, perform the steps listed below. Some of the settings do not need to be
changed the first time the device is set up, but can be changed later if you choose.
Figure 4- 6. WAN Settings window for PPPoE/PPPoA
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DSL-G604T 54Mbps Wireless ADSL2/2+ Modem/Router Manual
This window holds the following fields for the user to configure.
Username &
Password
Type the Username and Password used to verify the identity of your account.
Typically, the Username is an account number assigned by your ISP. See your ISP
for further information.
Connection Type
Choose between
PPPoE LLC, PPPoA LLC
or
PPPoE VC-Mux,
depending on the
instructions of your ISP.
MTU
The Maximum Transmission Unit (
MTU
) is a link layer restriction on the maximum
number of bytes of data in a single transmission. The default size is 1400 bytes per
packet. NAT improves network security in effect by hiding the private network behind
one global and visible IP address.
MRU
The Maximum Receive Unit
(
MRU
) field indicates the maximum number of bytes
that can be received by the Router. This MRU’s default size is 1492 bytes per
packet. Upon initial negotiation with your ISP, the router will tell the ISP that the
amount entered here is the largest packet that can be accepted by the router.
Default Route
Click the corresponding radio button if you wish to enable or disable the Default
Route. The Default Route is used for outgoing packets, which have an unresolved IP
address. If the router is unable to match the destination address on a received
packet with a destination address in the routing table, the router uses the default
route.
NAT
NAT improves network security in effect by hiding the private network behind one
global and visible IP address. NAT address mapping can also be used to link two IP
domains via a LAN-to-LAN connection. Use the pull-down menu to Enable or Disable
NAT on the Router.
Firewall
The
Firewall
allows the Router to enforce policies to protect against certain kinds of
attacks.
To enable the firewall on the Router, use the pull-down menu and select
Enabled
.
IP Control
This field allows the user to control the WAN IP address of the router. There are
three choices for the user:
Dynamic IP
– Select this option if you wish to have an IP address automatically
assigned to the router.
Unnumbered IP
– Select this option if your ISP has assigned a block of IP
addresses for use.
Static IP
– Select this option if you know the IP address assigned to the router. After
selecting this option, the user must enter the known Static IP address in the following
field. A Static IP address is used whenever a known static IP is assigned.
Static IP
This field states the Static IP Address of the Router can only be configured when
Static IP is chosen in the previous field.
Click
Apply
to implement the PPPoE settings for the DSL-G604T.
Bridge Mode
Selecting this option in the WAN Settings will change your screen to look like the one seen below.
Bridge
Mode
is for users who have software on their computer or other network device to accept the
connection from your ISP. The
Connection Type
setting is
selected by using the pull-down menu.
The two choices available to the user here are
1483 Bridged IP LLC
and
1483 Bridged IP Vc-Mux,
and this correct choice should be provided to you by your ISP.
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DSL-G604T 54Mbps Wireless ADSL2/2+ Modem/Router Manual
Figure 4- 7. WAN Settings window for Bridge Mode
Click
Apply
to implement the Bridge Mode settings for the DSL-G604T.
ATM
This section of the WAN window allows the user to adjust ATM Quality of Service (QoS) or traffic
parametres to suit specific traffic requirements. For applications or circumstances where packet loss or
packet delay are a concern, ATM QoS can be adjusted to minimize problems. For most accounts, it
will not be necessary to change these settings. Altering QoS settings can adversely affect performance
of some commonly used Internet applications.
If you plan to change QoS or traffic parametres, contact your ISP or network services provider for
information on what types of adjustment are available or possible for your account. Your ISP may not
support the class of service you want to use.
Figure 4- 8. ATM settings for the WAN interface
Service Category:
This field represents the
QoS (Quality of Service) feature for the ADSL router.
The choices available from the pull down menu include UBR (Unspecified Bit Rate), CBR (Constant
Bit Rate) and VBR (Variable Bit Rate). These values should already be set for you and should not be
changed unless specified by your ISP.
•
UBR
– Unspecified Bit Rate, this is the default category used for general-purpose Internet traffic
where normal levels of packet loss and delay are acceptable. For some applications or for multiple
connection accounts, it may be desirable to specify the PCR.
39
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DSL-G604T 54Mbps Wireless ADSL2/2+ Modem/Router Manual
•
CBR
– Constant Bit Rate, usually used in circumstances where very low packet loss and very low
Cell Delay Variable (CDV) are desirable.
•
VBR
– Variable Bit Rate, usually used when network traffic is characterized by bursts of packets
at variable intervals, and some moderate packet loss and delay is acceptable. This category is
typically used for audio and video applications such as teleconferencing. The network must
support QoS Class 2 to use VBR.
PCR
: PCR (Peak Cell Rate) refers to the Bandwidth control on your ADSL router. This field allows
you to enter a value representing the maximum bps (bits per second) the ADSL router can receive.
This field is limited by the stream coming form your ISP.
SCR:
SCR (Sustained Cell Rate) refers to the Bandwidth control on your ADSL router. This field
allows you to enter a value representing the minimum bps (bits per second) the ADSL router can
receive. After making the changes to this screen, click
Apply
to let your changes take effect.
40

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