A wireless access network device includes controlling means that controls communication and storing means that stores first table information that includes version information of each object. The controlling means includes difference detecting means for comparing the first table information in the storing means and second table information that is stored in a load module of the controlling means and for detecting a difference between the first table information and the second table information, the second table information including version information of the each object that is to have its version updated, and acquiring means for acquiring an update file for an object that is to have its version updated from another adjacent wireless access network device when the difference detecting means has detected the difference.