Patent ID: 8442230

Claim:
A method comprising: receiving, by a server device and from a member device, a registration request for a group virtual private network (VPN); generating, by the server device, an initial data set, the initial data set including an initial version identifier; sending, by the server device and to the member device, the initial data set with the initial version identifier; generating, by the server device, an updated data set with an updated version identifier; sending, by the server device and to the member device, a first message including the updated data set with the updated version identifier, the initial data set including instructions to cause the member device to: act on the updated data set when the updated version identifier is a next increment higher than the initial version identifier, initiate re-registration when the updated version identifier is more than a next increment higher than the initial version identifier, and discard the updated data set when the updated version identifier is not higher than the initial version identifier; sending, by the server device and to the member device, one or more second messages including the updated version identifier; and receiving, by the server device and from the member device, another registration request for the group VPN based on detection of a missing first message or one or more missing second messages.