after a debug session with Juniper support, we found the problem: it's a bug related to the 15.1X49-D70.3 firmware version. Basically the flow matched self-traffic-policy and SRX dropped packet because it not recognized the address as local. Thanks to all, Gianluca


Sebastian Wiesinger post was good but did not fully work for my set up. I needed to enable flexible-vlan-tagging as well as encapsulation flexible-ethernet-services on each interface in the mx104. I also want to break down the actual configuration commands I ran to make the configuration more clear. Will also include connections to other switches that the ...

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