OPTIMIZED HOME LINK DETECTION

摘要

The invention relates to a method for establishing by a mobile node an additional session via a connection to a packet data network in a mobile communication network and a mobile node and a packet data network gateway adapted to perform this method. In order to suggest optimized home link detection by a mobile node one aspect of the invention is to delay the decision on whether the mobile node is located on the home link or not. In conventional home link detection, the mobile node checks before sending any binding update on an access interface whether its prefix of the local IP address configured on that access interface is matching a home address prefix received during bootstrapping. According to one aspect of the invention, this home link detection is delayed in that home link detection is based on comparing a home address prefix received during bootstrapping and the advertised local prefix of a router advertisement received after bootstrapping.