Sourced based default routing

[Sazzad_Hasan]

I am trying to configure sourced based default routing. MyLAN has 3 VLAN and two uplinks.. x.x.x.2/30 and y.y.y.2/30. When i am trying to configure souce based routing from Security & SD WAN >> Addressing and VLANs>>

Source-based default routes and putting the following info source  VLAN suppose VLAN 10 and next hop y.y.y.1 . during saving following error are showing..

""There were errors in saving this configuration:

• The source-based route "X" has an invalid next hop IP. The IP address y.y.y.1 is not on a configured subnet. Only VLANs supplying 'same' subnetting settings can be validated against for config templates.
  
  How to solve the issue . can anyone help?

[alemabrahao · Accepted solution]

The error message suggests that the next hop IP address you’re trying to use is not on a configured subnet.

Make sure that the next hop IP (y.y.y.1 in your case) is on a subnet that is known to the Meraki device. The next-hop IP is known to the security appliance on the LAN side either by a VLAN or a static route.

https://www.subnet-calculator.com/subnet.php?net_class=A

[alemabrahao]

In other words, you must have an interface for this net hop subnet created on the MX. You cannot assign the IP of a subnet that the MX does not "know" as the next hop.

https://documentation.meraki.com/MX/Networks_and_Routing/Source_Based_Default_Routing

[Sazzad_Hasan]

Thanks for the reply. I am new in meraki environment and this part is little bit confusional to me . the y.y.y.2/30 is assigned as uplink2 on mx . 

suppose i have vlan 10 in my lan and assigned ip is 172.16.10.1/24 on that vlan . I want this vlan 10 when exit to the internet it will be nated with y.y.y.2 and and gateway will be y.y.y.1 . Can you advise me the detail configuration guide based on  this scenario.

[alemabrahao]

Sorry buddy, I don't understand what you want to do, can you bring it to the real world please?

A topology would help a lot in the explanation.

[PhilipDAth]

It sounds to me what you need to create is a flow preference.
https://documentation.meraki.com/MX/Firewall_and_Traffic_Shaping/MX_Load_Balancing_and_Flow_Preferen...

You simply say which WAN circuit to send it out.