Page 21 / 88
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16
D-Link DWR-921 User Manual
Section 3 - Configuration
The default setting of PPPoE is 1492.
The device will automatically reconnect to your PPPoE 
connection automatically.
Maximum Transmission 
Unit (MTU):
Auto-reconnect:
 
                 
                                
                    
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17
D-Link DWR-921 User Manual
Section 3 - Configuration
PPTP
Choose this Internet connection if your ISP provides you with a PPTP account. After modifying any settings, click 
Save Settings
to save your changes.
Choose Static IP only if your ISP assigns you an IP address. 
Otherwise, please choose Dynamic IP.
Enter the information provided by your ISP 
(Only applicable for Static IP PPTP).
Enter the information provided by your ISP 
(Only applicable for Static IP PPTP).
Enter the information provided by your ISP 
(Only applicable for Static IP PPTP).
IP address of PPTP server.
User/account name that your ISP provides to you for PPTP dial-
up.
Password that your ISP provides to you for PPTP dial-up.
Re-enter your password for verification.
Choose 
Always-on
when you want to establish PPTP 
connection all the time. If you choose 
Connect-on-demand
,
the device will establish a PPTP connection when local users 
want to connect to the Internet, and disconnect if there is no 
traffic after the time period defined by the 
Maximum Idle 
Time 
setting.
Address Mode:
PPTP IP Address:
PPTP Subnet Mask:
PPTP Gateway IP Address:
PPTP Server IP Address:
Username:
Password:
Verify Password:
Reconnect Mode:
 
                 
                                
                    
                        Page 23 / 88
                                            
                    
18
D-Link DWR-921 User Manual
Section 3 - Configuration
The time of no activity to disconnect your PPTP session. Set it 
to zero or choose 
Always-on
to disable this feature.
Maximum Idle Time:
 
                 
                                
                    
                        Page 24 / 88
                                            
                    
19
D-Link DWR-921 User Manual
Section 3 - Configuration
L2TP
Choose this Internet connection if your ISP provides you with an L2TP account. After modifying any settings, click 
Save Settings
to save your changes.
Choose 
Static IP
only if your ISP assigns you an IP address. 
Otherwise, please choose 
Dynamic IP
. 
Enter the information provided by your ISP 
(Only applicable for Static IP L2TP).
Enter the information provided by your ISP 
(Only applicable for Static IP L2TP).
Enter the information provided by your ISP 
(Only applicable for Static IP L2TP).
IP address of L2TP server. 
User/account name that your ISP provides to you for L2TP dial-
up.
Password that your ISP provides to you for L2TP dial-up.
Re-type your password in this field.
Choose 
Always-on
when you want to establish L2TP 
connection all the time. If you choose 
Connect-on-demand
the device will establish L2TP connection when local users 
want to use Internet, and disconnect if no traffic after time 
period of Maximum Idle Time.
The time of no activity to disconnect your L2TP session. Set it 
to 0 or choose 
Always-on
to disable this feature.
Address Mode:
L2TP IP Address:
L2TP Subnet Mask:
L2TP Gateway IP Address:
L2TP Server IP Address:
Username:
Password:
Verify Password:
Reconnect Mode:
Maximum Idle Time:
 
                 
                                
                    
                        Page 25 / 88
                                            
                    
20
D-Link DWR-921 User Manual
Section 3 - Configuration
Choose whether the DWR-921 should only use 4G networks, 
3G networks, or use 
Auto Mode
to automatically select a 
network.
Select 
Auto-Detection
to have the router automatically detect 
the settings for your connection. Select 
Manual
to enter the 
details of your connection manually. 
Fill in a name to identify the following 3G/4G configuration. 
Select your country and service provider to automatically fill in 
some of the required settings.
Fill in only if requested by ISP (optional).
Fill in only if requested by ISP (optional).
Enter the number to be dialed.
Select 
PAP
, 
CHAP
, or 
Auto
detection. The default 
authentication method is 
Auto
. 
Enter the APN information (optional).
Enter the PIN associated with your SIM card.
Select 
Auto
or 
Manual
to determine whether the router 
should reconnect to your 3G/4G network automatically or 
manually.
Prefer Service Type:
Dial Up Profile:
Account/Profile Name:
Country/Telecom:
Username:
Password:
Dialed Number:
Authentication:
APN:
Pin Code:
Reconnect Mode:
3G/4G
Choose this Internet connection if you already use a SIM card for 3G/4G Internet service from your mobile Internet service provider. The fields here 
may not be necessary for your connection. The information on this page should only be used if required by your service provider. After modifying 
any settings, click 
Save Settings
to save your changes.