A mobile terminal, a network node, and a packet transfer management node according to the present invention provide such effects that {HEAD ~ a race condition} between a PMIPv6 binding by a PBU message of PMIPv6 and {TAIL ~ a CMIPv6} binding by a BU message of CMIPv6 can be resolved 
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A mobile terminal , a network node , and a packet transfer management node according to the present invention provide such effects that { HEAD ~ a race condition } between a PMIPv6 binding by a PBU message of PMIPv6 and { TAIL ~ a CMIPv6 } binding by a BU message of CMIPv6 can be resolved
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