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A comment on Growl in Retirement. Parent comment

Re:Growl in Retirement by bonzini on Sunday November 29, 2020 @04:38AM (#25244057)
Tethering and hotspot traffic is still marked with a different APN type ("dun").
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Re:Growl in Retirement by usr1106 on Sunday November 29, 2020 @06:27AM (#25244501)
Does APN type go out over the network?

I thought that's an Android internal thing to decide which of several APNs to use.

Also the first 2 references that Google returns say dun is obsolete and not in use with today's devices. I believe that belongs to the ATD *99# era

(Havent't worked in the field for 10+ years, could be wrong.)

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Re:Growl in Retirement by bonzini on Sunday November 29, 2020 @06:55AM (#25244624)
No it doesn't go out, but the APN itself does go out on the network and can be used to apply different billing to tethered vs mobile browser data usage. https://news.ycombinator.com/item?id=25244052 for more info.
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