sources:
   http://www.roaringpenguin.com/pppoe/rp-pppoe-2.8.tar.gz 2e39b83cac26527b625236cd96fc7bb3
   http://www.roaringpenguin.com/pppoe/rp-pppoe-2.8.tar.gz.sig 619a81a6f866b9c41bd157a783c8f4e8
:sources