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在UE附着到EPS网络过程中,在默认承载建立过程分配IP地址。如果是分配IPv6地址的话,好像MME收到PDN GW分配的IPv6前缀和接口标识符,只把接口标识符发给UE,而不把前缀发给UE,不知道是为什么?多谢!
23401协议原文:
5.3 Authentication, security and location management
5.3.1 IP address allocation
5.3.1.1 General
……
During default bearer establishment, the PDN GW sends the IPv6 prefix and Interface Identifier to the S‑GW, and then the S‑GW forwards the IPv6 prefix and Interface Identifier to the MME or to the SGSN. The MME or the SGSN forwards the IPv6 Interface Identifier to the UE. The MME does not forward the IPv6 prefix to the UE. If the UE receives the IPv6 prefix from the SGSN during PDP Context Activation procedure, it shall ignore it.
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