[codetrotter]

> iphones are v6 only

Are you sure about this? Do you have a link with details?

If I disconnect from WiFi and use the SIM card currently in my iPhone, and I go to one of the websites that tell me my public IPv4 and IPv6 address it shows that the mobile internet connection I have with this SIM card is IPv4 only.

iPhone 14 Pro

[sambazi]

just checked again on an iphone se, 1st-gen, ios 15.x on t-mobile reseller in germany:

actually there is a v4 default route on the wwan-interface that appears to be a p2p link (192/32) probably to a cgnat.

besides 127/8, there are a only v6 routes, a lot of them.

[SSLy]

how do you check the routing table from the iphone? a jailbreak? some app?

[erinnh]

Hurricane Electric Network Tools can do it.

Its an app.

[sambazi]

kind of brings up the question if all apps can do this

[codetrotter]

Here’s the routing table that the HE.net Network Tools shows for my cellular connection shortly after I’ve turned off WiFi on my iPhone 14 Pro.

None of the entries in the cellular routing table is IPv6 with my current SIM card. So I am doubting more and more the claim that iPhone is somehow IPv6 only.

Seems more like some people have carriers that choose to provide them IPv6 only, and because of that they think that it has to do with the iPhone itself.

PDP_IPO (CELLULAR DATA)

default via 10.10.67.87 UGSC

10.10.67.87 via 10.10.67.87 UHr

10.10.67.87/32 via link#3 UCS

10.255.91.156 via 10.10.67.87 UGHWli

17.57.144.87 via 10.10.67.87 UGHWli

224.0.0/4 via link#3 UmCS

255.255.255.255/32 via link#3 UCS

[sambazi]

> So I am doubting more and more the claim that iPhone is somehow IPv6 only.

as well you should. the phone has to keep working.

my point was that smartphone ecosystem is ime very well established in the v6 internet and i doubt that any carrier assigns public v4 here.

[nerdbert]

That tool looked useful. Installed it and it immediately crashes when I tap "interface information". I guess my IP addresses are extremely top-secret.