Hi Greg, 2018-05-24 17:53 GMT+02:00 Greg KH <gregkh@xxxxxxxxxxxxxxxxxxx>: > 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 -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html