Draft non-working IPv6 test.
Draft non-working IPv6 test.


Former-commit-id: b663d98eb506fc09152774e9aaab822749724868
alexhersh/libcalico,projectcalico/libnetwork-plugin,tomdee/libnetwork-plugin,L-MA/libcalico,caseydavenport/libcalico,TrimBiggs/libnetwork-plugin,robbrockbank/libcalico,plwhite/libcalico,djosborne/libcalico,insequent/libcalico,TrimBiggs/libcalico,projectcalico/libcalico,tomdee/libcalico,Symmetric/libcalico,TrimBiggs/libnetwork-plugin