Embodiments are directed towards managing communication over a network with a traffic management computer (TMC). If a network protocol associated with a network traffic is unknown, additional actions may be performed. Constant value recognition actions may be selected for one or more complex protocols. The one or more complex protocols may be the Teredo protocol, or another tunneling protocol. If constant value recognition conditions may be satisfied still further actions may be performed to determine the complex protocol. If a sufficient number of the action results are affirmative, one or more operations on the network traffic may be performed based on the complex protocol. And, the network traffic may be sent to a client or a server. Performing the operations on the network traffic may include providing an identity of another network protocol that may be encapsulated in the complex protocol.
