Network host bits checked

* network host bits must be zero
* macCopntainer test reinstated

[#75464982]

Signed-off-by: Steve Powell <spowell@pivotal.io>
Merge branch 'respect-network-flag-#75464982' into master

* Network host bits checked

[#75464982]

Signed-off-by: Steve Powell <spowell@pivotal.io>