Added private network confguration of vagrant.
Added private network confguration of vagrant.

jhftrifork/elasticsearch,alex-glv/elasticsearch,jrslv/elasticsearch,mesos/elasticsearch,frankscholten/elasticsearch,ruo91/elasticsearch-1,alex-glv/elasticsearch,mesos/elasticsearch,lguminski/elasticsearch,openwis-ss/elasticsearch,matthoffner/elasticsearch,matthoffner/elasticsearch,mwl/elasticsearch,mesos/elasticsearch,matthoffner/elasticsearch,pekermert/elasticsearch,lguminski/elasticsearch,jrslv/elasticsearch,mwl/elasticsearch,mwl/elasticsearch,pekermert/elasticsearch,mesos/elasticsearch,pekermert/elasticsearch,matthoffner/elasticsearch,alex-glv/elasticsearch,openwis-ss/elasticsearch,openwis-ss/elasticsearch,openwis-ss/elasticsearch,mwl/elasticsearch,jrslv/elasticsearch,jrslv/elasticsearch,lguminski/elasticsearch,ruo91/elasticsearch-1,lguminski/elasticsearch,jhftrifork/elasticsearch,frankscholten/elasticsearch,frankscholten/elasticsearch,jhftrifork/elasticsearch,alex-glv/elasticsearch,frankscholten/elasticsearch,jhftrifork/elasticsearch,pekermert/elasticsearch,ruo91/elasticsearch-1