Datto Networking: Routers: LAN Settings



This article describes how to configure LAN Settings for a Datto Router.


  • Datto Routers


Datto routers allow for one configurable LAN per port. All ports can operate on the same LAN, or across multiple unique and segmented LAN instances.



In Datto Network Manager's Navigation menu, click Routers, then select LAN Settings from the expanded options. 

mceclip0.pngFigure 1: The Navigation menu (click to enlarge)


The Router LAN settings page contains a table displaying all LANs associated with a router. The table contains the following information about the router's LANs:

mceclip2.pngFigure 2: Router LAN table (click to enlarge)

  • Name: Shows the name of a LAN
  • Assigned LAN port(s): Displays what ports are assigned and using a LAN
  • Actions: Click the ellipsis icon to delete a LAN

Adding a LAN

To add a LAN configuration, follow the steps below:

1. Click the Add LAN button.

2. Assign a port to the LAN by selecting the checkbox next to the port number. If a port is assigned to another LAN, you must unassign it first.


Figure 3: Assigning ports to a new LAN (click to enlarge)

 3. Under IP Settings, enter the IP addresses for the LAN's gateway and subnet mask.

mceclip4.pngFigure 4: LAN IP settings (click to enlarge)

4. Select the Enable DHCP checkbox to enable and configure DHCP:

  • Enter IP addresses for a DHCP pool start and end. A DHCP pool requires a start IP address when configuring both a DHCP pool end & a DHCP lease time
  • DHCP lease time is the amount of time (in minutes) a device can use a DHCP-supplied address on the network. Enter a DHCP lease time with a minimum of 5 minutes and a maximum of 10080 minutes (7 days)

mceclip5.pngFigure 5: DHCP settings (click to enlarge)

5. Advanced DHCP Options: Select the Advanced DHCP Options checkbox to enable and configure the following options:

  • Option 6 (DNS Server): Enter a DNS server IP address
  • Option 33 (Static Route): Enter a destination and gateway IP address
  • Option 42 (Time Server): Enter a time server IP address
  • Option 66 (TFTP Server): Enter a TFTP server IP address, or a URL up to 250 characters
Configured option values are sent to DHCP clients when they renew their DHCP lease.

mceclip6.pngFigure 6: Advanced DHCP settings (click to enlarge)

DHCP Reservations

DHCP Reservations let you reserve IP addresses in a DHCP pool for specific devices. This ensures that:

  • Only the intended device will have that IP address
  • The address will not be assigned to another device

To add a DHCP reservation:

  • MAC: Enter the device's MAC address
  • Device Name: Enter the device's name
  • IP: Enter an IP address that is part of a configured DHCP pool, and that you would like reserved for the device.
  • Add/Remove: Click Add to add the rule. Click Remove to remove an existing rule

mceclip7.pngFigure 7: DHCP Reservations (click to enlarge)

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