Datto Networking Appliance (DNA): WAN Port Settings



This article describes the process to configure WAN ports on the Datto Networking Appliance (DNA). The Datto Networking Appliance can accept both IPv4 and IPv6 addresses from its ISP connection.


  • Datto Networking Appliance (DNA)


To manage your DNA's WAN ports, log into the DNA web interface, and click Networks, as shown in Figure 1.

mceclip0.pngFigure 1: Networks (click to enlarge)

You will see the cards for WAN Port 1 and WAN Port 2 displayed on the left column of the page.

Figure 2: Networks pane, showing WAN Port 1 and WAN Port 2 (click to enlarge)

By default, the primary WAN port is labeled as port 1 on the back of the DNA, and the secondary WAN port is labeled as port 2.


Labeling WAN Ports

1. Choose the desired WAN Port from the Configured Networks pane shown in Figure 2.

2. At the top of the selected WAN port's card, enter a custom label. By default, each WAN port is labeled ISP 1 or ISP 2.

Figure 3: WAN Port 1 label (click to enlarge)

 3. Click the Save Changes button.

Changing the Connection Mode

1. Choose the desired WAN Port from the Configured Networks pane shown in Figure 2.

2. Click the Mode dropdown, and select the desired connection type.

Figure 4: Connection mode drop-down (click to enlarge)

The following IP address modes are available:

  • DHCP: The DNA will attempt to assign a dynamic IP address to the port.
  • Static Address: The DNA will prompt you to assign the port a static IP address. See the Setting a Static IP section of this article for more information.
  • PPPoE: DSL connections commonly use this mode. If selected, the DNA will prompt you for the username and password used to connect to your ISP.

When you are finished configuring your connection, click the Save Changes button.

Changing the Primary and Secondary WAN Connections

1. Select the desired WAN Port from the Configured Networks pane shown in Figure 2.

2. Click the Primary or Secondary radio button, depending on which value you would like to set for each port.

If you change Port 1 to Secondary, Port 2 will automatically switch over to Primary.

Figure 5: WAN Priority (click to enlarge)

3. Click the Save Changes button.

Setting a Static IP

You can configure up to 16 WAN IP addresses per WAN port.

1. On the selected WAN card, choose the Static Address option from the Mode dropdown.

2. Complete all fields required by your ISP, and then click Save Changes. 

Use the optional Additional IP Addresses field for 1:1 NAT.

Figure 6: Static IP address configuration (click to enlarge)

The Subnet Mask drop-down menu lets you select masks from /17 to /31.

Setting Custom DNS

1. On the selected WAN card, click the Add Custom DNS option.

2. Choose Google Public DNS, OpenDNS, or Custom from the Nameservers dropdown. If you select Custom, you will be prompted to enter the information shown in Figure 7.

Figure 7: Custom DNS (click to enlarge)

3. Click the Save Changes button.

Setting Custom MAC Address

1. On the selected WAN card, click the Custom MAC Address option.

2. Enter a valid MAC address in the Custom MAC Address field. You can enter the MAC address as colon-separated or purely alphanumeric.

3. Click the Save Changes button.

2018-05-09_11-54-57.pngFigure 8: Custom MAC Address (click to enlarge)

Setting the MTU

1. Input an MTU value between 68 and 1500. 1500 is the default value for all WAN interfaces.

2. Click Save Changes.

Figure 9: Setting the MTU (click to enlarge) 

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