DIR-620

Multifunction Wireless Router Supporting WiMAX,

3G GSM/CDMA with Built-in Switch

User Manual

Configuring via Web-based Interface

If your ISP has provided the addresses of the DNS servers, deselect the

Obtain DNS server

addresses automatically

checkbox and fill in the

Primary DNS server

and

Secondary

DNS server

fields.

If your ISP has provided its identifier, fill in the

Vendor ID

field.

Click the

Next

button to continue.

If needed, change the connection settings available in the

Miscellaneous

section.

Figure 45.

Configuring PPTP + Dynamic IP WAN connection.

Parameter

Description

Enable RIP

Select the checkbox to allow using RIP for this connection.

Enable IGMP Multicast

Select the checkbox to allow multicast traffic from the external

network (e.g. video streaming) to be received.

NAT

Select the checkbox if you want one WAN IP address to be used for

all computers of your LAN.

Firewall

Select the checkbox to enable protection against ARP and DDoS

attacks.

Click the

Next

button to continue.

Page

51

of 159

DIR-620

Multifunction Wireless Router Supporting WiMAX,

3G GSM/CDMA with Built-in Switch

User Manual

Configuring via Web-based Interface

Figure 46. Configuring PPTP + Dynamic IP WAN connection.

Leave the

Connect automatically

checkbox selected to allow automatic start of the connection

upon the load of the router.

In the

Username

field, enter your login, and in the

Password

and

Password confirmation

fields – the password provided by your ISP.

If authorization is not required, select the

Without authorization

checkbox.

In the

VPN server address

field, enter the IP or URL address of the PPTP or L2TP

authentication server.

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of 159

DIR-620

Multifunction Wireless Router Supporting WiMAX,

3G GSM/CDMA with Built-in Switch

User Manual

Configuring via Web-based Interface

If needed, specify additional settings for your PPTP + Dynamic IP or L2TP + Dynamic IP WAN

connection.

Parameter

Description

Encryption

Select a method of MPPE encryption.

•

No encrypt

: MPPE encryption is not applied.

•

MPPE 40/128 bit

: MPPE encryption with a 40-bit or 128-bit

key is applied.

•

MPPE 40 bit

: MPPE encryption with a 40-bit key is applied.

•

MPPE 128 bit

: MPPE encryption with a 128-bit key is

applied.

MPPE encryption can be applied only if the

MSCHAP

,

MACHAPv2

, or

AUTO

value is selected from the

Authentication algorithm

drop-down list.

Authentication

algorithm

Select a required authentication method from the drop-down list or

leave the

AUTO

value.

MTU

The maximum size of units transmitted by the interface.

Keep Alive

Select the checkbox if you want the router to

keep you connected to

your ISP even when the connection has been inactive for a specified

period of time. When the checkbox is selected, the

LCP interval

and

LCP fails

fields are available. Specify the required values.

Extra options

Advanced options of the pppd daemon which need to be specified

for this connection.

Optional

.

Dial on demand

Select the checkbox if you want the router to establish connection to

the Internet on demand. In the

Maximum idle time

field, specify a

period of inactivity (in seconds) after which the connection should

be terminated.

PPP debug

Select the checkbox if you want to log

all data on PPP connection

debugging.

IP received

The IP address assigned by the ISP.

Click the

Next

button to continue.

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DIR-620

Multifunction Wireless Router Supporting WiMAX,

3G GSM/CDMA with Built-in Switch

User Manual

Configuring via Web-based Interface

If needed, change the settings of the VPN tunnel available in the

Miscellaneous

section.

Figure 47. Configuring PPTP + Dynamic IP WAN connection.

Parameter

Description

Enable RIP

Select the checkbox to allow using RIP for this connection.

NAT

Select the checkbox if you want one WAN IP address to be used for

all computers of your LAN.

Firewall

Select the checkbox to enable protection against ARP and DDoS

attacks.

Click the

Next

button to continue.

After that the page displaying all specified settings opens. Click the

Save

button to create the

connection or the

Back

button to specify other settings.

After clicking the

Save

button, the quick settings page opens.

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DIR-620

Multifunction Wireless Router Supporting WiMAX,

3G GSM/CDMA with Built-in Switch

User Manual

Configuring via Web-based Interface

3G Connection

Figure 48. Configuring 3G connection.

In the

Name

field, specify a name for the connection for easier identification and click the

Next

button.

Figure 49. Configuring 3G connection.

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