Packets are not arrived at tunnel setup by libgtpnl

congnt congnt at
Fri Nov 24 04:52:21 UTC 2017

Hi Harald and Firat,

Thank you very much for your reply. Sorry for not provide detail information

when asking question.

Lucky me, I am able to solve my problem now. It's because of wrong MAC

address in packets that cause gtp device unable to receive. Stupid mistake.

Still, I post it here just in case it can help other newbies like me.

Thanks and best regards


On 11/23/2017 08:30 PM, Harald Welte wrote:
> hi Cong,
> it would be very useful if you could give a description of what exactly
> your are trying to achieve, using which particular versions of which software.
> The kernel GTP module is known-working and has been verified with both
> OpenGGSN and OsmoSGSN.  There are also other users such as OpenAirInterface
> as well as (as far as I know) ergw.  It might be easiest to simply use
> one of those programs to understnd how the kernel GTP-U driver is used.
> Also, if you want us to be able to help you, please always include the detailed
> copy+paste output of the related commands and tools, e.g. the exact gtp-link
> and gtp-tunnel commands you have been using.

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