T-Mobile Galaxy S2 with Android 4.0 is the first with IPv6 support | Hacker News Reader

T-Mobile Galaxy S2 with Android 4.0 is the first with IPv6 support

extremetech.com

43 pointsmrsebastian14 comments

First branded phone on T-Mobile with IPv6.

Also, the HTC One S has been available on T-Mo for a few days now; it's running ICS and should thus support IPv6. Wouldn't that make it the first branded IPv6-capable phone?

Edit: As noted below, the software on the One S does indeed not support IPv6 as of now.

The One S may have an IPv6-hating baseband; apparently this is a very common reason why phones cannot be upgraded to support v6 in software.

if true, LOL!

It seems the hardware is willing, but some proprietary software part is weak: https://groups.google.com/forum/?fromgroups#!msg/tmoipv6beta...

Wait, you can switch between IPv4 & IPv6 APNs? Do you get NAT-ted IPv4 in the IPv6 one at all?

The data connection only supports one protocol at a time, so it's IPv6-only. T-Mobile provides a NAT64/DNS64 gateway which generates an IPv6 address for every domain you query.

This works in most cases, unless you have an app that doesn't understand IPv6, or a site that uses raw IPv4 literals instead of DNS.

confirmed working with galaxy nexus too

because iOS hasn't had this for years.

IPv6 over WLAN is no problem, that can be entirely done on the application processor. Everything mobile however has to go through the baseband processor, an extra subsystem with propietary software doing propietary protocols. Communicaton between baseband and application processor is very limited, and to this day happens mostly over a serial line speaking as AT modem.

I don't see how IPv6 on mobile data helps anyone but law enforcement and your mobile provider. Keeping smartphones behind a NAT (that can still speak IPv6 to the outside world if it were inclined to do so) and avoiding the baseband turmoil seems like a winning strategy.

you do understand that ipv6 has mandatory ipsec, right?

It is mandatory for devices to support IPSec, not to enable it for all connections. Beside of that, where should the IPSec tunnel be terminated to get around interception?

You realize that v6 with a public IP vs v4 behind NAT on mobile data makes no difference for law enforcement, right? Carrier NAT keeps a record of who was using what ports when so they can trace it out.

And who exactly keeps remote ports in his apache log?

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