SummaryLooking at Hola traffic on the network is diffcult, and near impossible to deal with
OverviewHola VPN is a browser add in that allows users to access georestricted content by making a VPN tunnel and manipulating DNS requests to make it seem like the user is in a different location. Can this traffic be monitored, caught and shaped? Unfortunately, it cannot be truly caught, just by the design of the application.
CauseHola manipulates DNS to contact DNS Servers in other locations and allows them to serve the page like it's a request coming from another location. The traffic on the host WAN can be reaching out to the DNS servers but it is not guaranteed; these DNS servers can change based on Hola's discretion.
Furthermore, Hola's VPN tunnelling has been shown to use VPN endpoints of other computers running Hola, instead of the standard termination point of a static server. This not only forms a sort of P2P VPN network, but also a highly dynamic environment that will change per connection, depending on the number of people in the world using Hola at a time.