Configure Layer 3 Subinterfaces for SD-WAN

1. Configure an SD-WAN Interface Profile for each ISP connection (subinterface) to define its link attributes.
2. Create a Layer 3 subinterface that uses a static IP address.
   1. Select NetworkInterfacesEthernet and in the Template field select a template.
   2. Select an interface.
   3. For Interface Type, select Layer3 and click OK.
   4. Highlight the interface and click Add Subinterface at the bottom of the screen.
   5. After the Interface Name and period, enter the subinterface number.
   6. Enter a Tag for the subinterface (range is 1 to 4,094). For ease of use, make the tag the same number as the subinterface ID.
   7. On the IPv4 tab, Enable SD-WAN.
   8. Select the Type of address: Static.
   9. Add the IP address and subnet mask.
   10. Enter the IP address of the Next Hop Gateway.
   11. Click OK.

3. Alternatively, create a Layer 3 subinterface that uses DHCP to get its address.
   1. Select NetworkInterfacesEthernet and in the Template field, select a template stack (not a template).
   2. Select an interface.
   3. For Interface Type, select Layer3 and click OK.
   4. Highlight the interface and click Add Subinterfaces at the bottom of the screen.
   5. Highlight the subinterface and click Override.
   6. Highlight the subinterface and after the Interface Name and period, enter the subinterface number.
   7. Enter a Tag for the subinterface (range is 1 to 4,094). For ease of use, make the tag the same number as the subinterface ID.
   8. On the IPv4 tab, Enable SD-WAN.
   9. Select Type of address: DHCP Client and Enable.
   10. Uncheck (do not select) Automatically create default route pointing to default gateway provided by server.
   11. Select the Advanced tab and then the DDNS tab.
   12. Select Settings and Enable. The Hostname is automatically generated by the Panorama SD-WAN plugin.
   13. Select the Vendor as Palo Alto Networks DDNS.
   14. Click OK.

4. Apply an SD-WAN Interface Profile to the subinterface.
   1. Highlight the subinterface you created and select the SD-WAN tab.
   2. Select the SD-WAN Interface Profile you created for this link or create a new profile.
   3. Click OK.
5. Repeat the prior steps to add more subinterfaces to the interface.
6. Commit.