摘要:
A client for IPv4 having a SIP function sends first REGISTER to adapter. Then, the adapter executes an authentication sequence of EAP-AKA for an access gateway connected to the interval of an IMS/MMD network and the IPv4 network, then establishes the tunnel connection. Then, the adapter generates second REGISTER corresponding to the IPv6 based on first REGISTER corresponding to IPv4. And, the adapter sends second REGISTER to a SIP server connected to the IMS/MMD network through the tunnel connection to the access gateway.
摘要:
A gateway controls electric equipment connected to LAN through WAN. The gateway has address mapping table that LAN address corresponds to WAN address, network layer unit for converting source address and destination address in network layer into WAN address for a packet received from LAN, and application layer unit for converting access address in application layer into WAN address for the packet.