DoCoMo's "IPv6 Single Stack" will be provided from February 1st No user settings or operations required
Image of dual stack connection and single stack connection
NTT DoCoMo will provide "IPv6 single stack method" connection in the net connection service "sp mode" sequentially from February 1st. As part of measures to deal with the exhaustion of the old "IPv4 address", the target terminals are scheduled to be gradually switched to the single stack method (* 1). No user settings or operations are required. [Image] Models that support IPv6 connection including dual stack (as of February 1) (* 1) Depending on the equipment of the connection destination, dual stack (both IPv4 address and IPv6 address are assigned) connection may be used. , The connection may be assigned only an IPv4 address (it cannot be explicitly specified by the user).
Target model
IPv6 single stack connectivity is provided in sp-mode with Xi (LTE) or 5G contracts. Compatible models are as follows.・ Android smartphone ・ All models after the summer 2021 model (* 2) ・ AQUOS R5G SH-51A ・ Xperia 1 II SO-51A (* 3) ・ Xperia 5 II SO-52A ・ Galaxy S20 5G SC-51A (* 3) ) (* 4) ・ Galaxy A51 SC-54AiPhone ・ iPhone 12 or later (when iOS 14.5 or later is installed) Home router ・ All models of home 5G HR01 or later Data communication terminals ・ 5G compatible models of 2020 summer model or later ( * 2) Excluding "Xperia Ace II SO-41A" and "DIGNO Keitai Basic KY-41B" (corporate model) (* 3) Excluding sales on the ahamo site (* 4) IMEI (identification number) is " It is said that even past models that are excluded as of February 1st, excluding individuals starting with "35797062", may support (switch) the connection using the IPv6 single stack method depending on the future situation.
What is IPv6 single stack? (review)
In the IPv6 single stack, it is a connection method that assigns only the "IPv6 address" to the terminal. When connecting to a site that supports only IPv4 connection, address translation is performed at DoCoMo's network equipment (* 5). (* 5) DoCoMo implements address translation using two methods, "DNS64 / NAT64" and "464XLAT".
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