Hi Folks,
I have a case where i have packets being split by a device beforehand.

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Basically what is happening is that a TCP SYN, SYN-ACK,ACK flow goes from RTR1 to Box1 then LxRTR. After this, all other packets flow RTR1, Box2, LxRtr.

I am totally new to IPTABLES and am hence asking how i can use CONNTRACK to make sure the the LxRtr is able to return the packets after the TCP establishment phase to the client via Box2.