Foward trafic from 3400 to 6400 without nat

There is somehing does not make sense with your representation of how you are connecting the LTMs togheter.

 

 

Below looks like as if they are either seperate interfaces on the same segments or they are completely different?

 

 

( 10.10.10.1)

 

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F5(3400)

 

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10.10.1O.1 (virtual server)