Hi Greg,

2018-05-24 17:53 GMT+02:00 Greg KH <gre...@linuxfoundation.org>:
> On Thu, May 24, 2018 at 05:04:49PM +0200, Daniele Palmas wrote:
>> Hello,
>>
>> I have an issue with an USB mbim modem when trying to send with ping
>> more than 14552 bytes: it looks like to me a kernel issue, but not at
>> the cdc_mbim or cdc_ncm level, anyway not sure, so I'm reporting the
>> issue.
>>
>> My kernel is 4.16. The device is the following:
>
> Does older kernels work, or is this something that has always been
> there?
>

Not tested yet, I'm going to do.

> I ask, as my mobile provider does horrible things to large packet sizes.
> So much so that I have to set the mtu to 1280 just to get things to work
> properly when tethering my phone through to my laptop.  So this might be
> a network provider issue :)
>

Yeah, I thought the same, so I tried the same scenario with Windows 10
but it is working fine.

Thanks,
Daniele

> thanks,
>
> greg k-h
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