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.

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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.

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