local:execrunner have two networks: a
controlnetwork to communicate with other test plan instances.
controlnetwork anyways to ensure that it doesn't interfere with the test. Your test plan should always communicate with other test instances via the data network.
datanetwork, used for communication between test plan instances, will be assigned a
Bblock in the IP range
188.8.131.52/4. Given the B block
X.Y.0.1is always the gateway and shouldn't be used by the test.