| 摘要 |
The invention relates to a method for traversing a NAT device residing in a backhaul IP network. A home cellular base station (HeNB) and a collocated local gateway (L-GW) providing access to a local IP network are connected to a mobile operator's packet core network through the NAT device. The method comprises the steps of opening an IPsec tunnel between the home cellular base station (HeNB) and a security gateway (SeGW) via the NAT device, and of tunneling two interfaces through the same IPsec tunnel, wherein a first interface is an interface whose local endpoint is the home cellular base station (HeNB) and whose remote endpoint is a node residing in the operator's packet core network, and a second interface is an interface whose local endpoint is the local gateway (L-GW) and whose remote endpoint is a node residing in the operator's packet core network.; The invention also relates to a node comprising a home cellular base station (HeNB) and a collocated local gateway (L-GW). |
