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Section 3 – Configuration 
D-Link DSL-2642B User Manual 
35 
PPP Username:
Enter the account username in here. 
PPP Password: 
Enter the account password in here. 
Authentication Method: 
Choose the appropriate authentication method 
here. If not sure leave this option on 
Auto
. 
Enable NAT: 
Tick this option to enable NAT for this connection. 
Enable Fullcone NAT: 
Tick this option to enable Fullcone NAT for this 
connection. 
Enable Firewall: 
Tick this option to enable firewall for this connection. 
Dial on demand: 
Tick this option to enable dial on demand for this 
connection. 
Inactivity Timeout: 
The option appears when 
Dial on demand
is 
selected. Enter an inactivity timeout value here. Leave this option on 0 to 
disable this option. 
Use Static IPv4 Address: 
Tick this option to use a Static IP version 4 
address for this connection. 
IPv4 Address: 
The option appears when 
Use Static IPv4 Address
is 
selected. Enter the Static IP version 4 address used here. 
Enable IGMP Multicast:
Tick this option to allow IGMP packets to go 
through the WAN interface in both directions. 
 
                 
                                
                    
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Section 3 – Configuration 
D-Link DSL-2642B User Manual 
36 
Selected WAN Interface: 
Use the drop-down menu to choose the WAN 
interface to use this connection. 
Obtain DNS info from a WAN interface: 
Click the radio button to obtain 
DNS Server IP addresses automatically from the ISP. 
User the following Static DNS IP address: 
click the radio button to 
manually enter the Primary and Secondary DNS Server IP addresses for 
this connection. 
Click the 
Apply
button to accept these changes. 
Click the 
Cancel
button to discard these changes. 
 
                 
                                
                    
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Section 3 – Configuration 
D-Link DSL-2642B User Manual 
37 
IP over ATM (IPoA) 
VPI: 
Enter the correct VPI used here. 
VCI:
Enter the correct VCI used here. 
Select DSL Link Type:
Select the correct DSL Link Type here. For 
PPPoE, IPoE and Bridge Modes, select EoA. Click the 
IPoA
radio 
button to configure IPoA mode. 
Encapsulation Mode: 
Choose the appropriate Encapsulation Mode 
here. 
Service Category:
Choose the appropriate Service Category here. 
Enable Quality of Service:
Tick this option to enable Quality of Service.
Enter Service Configureation: 
Choose the appropriate WAN Service 
Type here. 
WAN IP Address: 
Enter the WAN IP address used here. 
WAN Subnet Mask: 
Enter the subnet of the WAN IP address. 
 
                 
                                
                    
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Section 3 – Configuration 
D-Link DSL-2642B User Manual 
38 
Enable NAT: 
Tick this option to enable NAT for this connection. 
Enable Fullcone NAT: 
he option appears when 
Enable NAT
is 
selected. Tick this option to enable Fullcone NAT for this connection. 
Enable Firewall: 
Tick this option to enable firewall for this connection. 
Enable IGMP Multicast:
Tick this option to allow IGMP packets to go 
through the WAN interface in both directions. 
Selected WAN Interface: 
Use the drop-down menu to choose the WAN 
interface to use this connection. 
Primary/Secondary DNS server: 
Enter the Primary and Secondary 
DNS Server IP addresses for this connection. 
Click the 
Apply
button to accept these changes. 
Click the 
Cancel
button to discard these changes. 
 
                 
                                
                    
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Section 3 – Configuration 
D-Link DSL-2642B User Manual 
39 
There are 5 different variations in the 
Service Category
drop-down menu when configuring the abovementioned connections. 
UBR Without PCR
There is no additional field listed when choosing this category. 
UBR With PCR
Peak Cell Rate: 
Here the user can enter the Peak Cell Rate used. 
CBR
Peak Cell Rate: 
Here the user can enter the Peak Cell Rate used. 
Non Realtime VBR
Peak Cell Rate: 
Here the user can enter the Peak Cell Rate used. 
Sustainable Cell Rate: 
Here the user can enter the Sustainable Cell 
Rate used. 
Maximum Burst Size: 
Here the user can enter the Maximum Burst Size 
used. 
Realtime VBR
Peak Cell Rate: 
Here the user can enter the Peak Cell Rate used. 
Sustainable Cell Rate: 
Here the user can enter the Sustainable Cell 
Rate used. 
Maximum Burst Size: 
Here the user can enter the Maximum Burst Size 
used.