Passing thin metric NAT for plural concurrent connections

摘要

SolutionsThe technology which handles the plural connections which are, in the midst of NAT elapsing for the node which is on back of the thin metric NAT is disclosed. During thin metric NAT elapsing the probability where connection fails decreases by the fact that the critical time window after the port estimating is serialized. Once when port estimate for 1st connection starts, port estimate for the connection which follows to that is delayed, until connection characteristic check for 1st connection starts. In order to handle NAT passing in order plural simultaneously to connect, this processing is repeated to the other node. Selective figure Figure 4