V-netlab: an approach for realizing logically isolated networks for security experiments

Cyber security experiments with potentially malicious software can possibly damage the testbed environment and escape into the Internet. Due to this security con-cern, networks used in such experiments are often to-tally isolated from production networks and the Inter-net. This choice, however, precludes remote access to testbeds used for security experiments, thus requiring costly duplication of equipment, manpower and expertise at sites that experiment with malicious software. We pro-pose an alternative approach that is aimed at providing a degree of safety comparable to that of physically iso-lated testbeds while still permitting remote connectivity. Our approach relies on logical isolation of networks used in different security experiments using network virtual-ization at the datalink layer. We have implemented this approach into a platform (V-NetLab), and the responses from testbed users have been very positive.