I would like to understand traffic flow hop by hop. We plan on building GRE tunnels from our router to Zen Node.
Server-----Router------GRE-------Zen Node (Traffic Cleansing)----Internet
I would like to know:
a) If on Zen Node any Natting is done form my taffic
b) If no natting is done then does that mean that return traffic will will be sent directly to my router thus a case of Asymmetric routing