lib/testlab/providers/vagrant.rb in testlab-0.4.4 vs lib/testlab/providers/vagrant.rb in testlab-0.4.5

@@ -132,10 +132,16 @@
       def identity
         (@config[:vagrant][:identity] || File.join(ENV['HOME'], ".vagrant.d", "insecure_private_key"))
       end
 
       def ip
-        (@config[:vagrant][:ip] || "192.168.33.10")
+        (@config[:vagrant][:ip] || "192.168.33.#{last_octet}")
+      end
+
+      def last_octet
+        hash = instance_id.hash
+        hash = (hash < 0 ? (hash * -1) : hash)
+        (hash.modulo(254) + 1)
       end
 
       def port
         (@config[:vagrant][:port] || 22)
       end