Some tests require Internet access to function, like bug 285826. In order to properly condition these tests, support needs to be added to Jenkins CI and appropriate test jobs.
As replied in bug285826 and https://reviews.freebsd.org/D49594 , I suggest let's firstly try to use another approach to reduce the external dependency for better test stability and reliability.
(In reply to Li-Wen Hsu from comment #1) *nod*