The test actually does not need the ethernet interface to be the only ethernet interface, as ethernet test interfaces now have TRANSPORT_TEST|TRANSPORT_ETHERNET, which can be used to differentiate them in the network request. Bug: 162469293 Bug: 160612321 Test: atest CtsNetTestCasesLatestSdk:NetworkValidationTest Change-Id: I84cc8b6b9aaa764705d91ed298655d869c4388a6 Merged-In: I84cc8b6b9aaa764705d91ed298655d869c4388a6