Between MX and EX4300 there is only currently one connection and on both ends are set to switchport, traffice between them is based on the routing 10.1.1.1 on MX and 10.1.1.2 on EX4300. As for configuration from 4300 I have to do a lot sanitization (romving password, etc) anyway the VLAN10 which is DMZ on MX is set only on MX, on EX4300 and EX3300 there is no VLAN 10
The problem is now all traffic goes throught that single connection between MX and EX4300. Even if I add vlan 10 to EX4300 is that do anything if routing is set to send all traffic throught the current existing connection?
I am attaching new jpeg with what I want to atchieve.