Re: Need An Advice

So for a solution with routes. 

We need Metric routes 

For UDP Traffic 

if UDP fw is not accessible then it will route the SRX 

If srx is not accessible then it will route to the EX

For tcp traffic

if srx is not accessible then it will route to the EX

But the main problem is that. SRX requires to see the return of the traffic for an healty work. so 

If we create a prefix list on MX to route the traffic to the firewall with destination addresses then the same list must work on the EX to send the same traffic with the source addresses to the SRX

how should i apply a list on both of this devices 

with a metric route this should be a better solution.