I am having trouble routing traffic via vlans. see diagram below.
Existing deployment is to go over a vpn from the router to main data center. Internet connection is out the same router. We have now had a L2 link installed, so that all the traffic goes across this L2 link into the Data Center and internet traffic will breakout via a Firewall. VPN can now be a secondary link in case of L2 link down.
on the far right of diagram is a gui based non cisco switch, it is tagging all client ports with vlan 10. The default gateway is on the router as an SVI with say 192.168.1.1
It is a trunk link from a 4 port switch on the router to the 3rd party switch.
On that same 4 port switch on the router is a Layer 2 wan link to a data center, this is also trunked.
When I move the SVI for vlan 10 from being on the router, to being on the firewall L3 link, traffic stops flowing. The trunks allow all vlans and the native vlan is the same for all. The L2 link is working but just can't understand why it will not route