MX autoVPN with BGP - Default route not advertised

[ChristianRavn]

Hi,

I have been testing using BGP between MX and our DC L3 switch. 
I do not get the 0/0 default route advertised.
If I enable the "ipv4 default route" or exit hub none of the 0/0 defaults in the routing table gets advertised.

How do I get the local MX to send the auto generated default route via BGP?

[RaphaelL]

Hi ,

You want your MX HUB in your DC to receive a default route from your spokes ?

What are you trying to achieve here ?

[ChristianRavn]

Hi,

My L3 switch at the main hub needs the default for internet access.

I could just add a static to the MX, but I would like the route to only appear if the MX is online.

[ww]

You are running routed mode bgp?

I dont think you can do this .

What you can do it set on your layer3 switch a default route with route tracking 

[GIdenJoe]

I think you get this backward.
The intention of the BGP implementation on MX is to provide the spoke routes to some infrastructure.  So all your spoke networks that participate in autoVPN will be injected into BGP and given to it's configured neighbor.

The clicking of default route in the VPN page is meant for branches to use that MX as a full tunnel endpoint to reach all other destinations.

The upstream infrastructure needs it's own way to reach the internet outside of the BGP implementation on the MX.