Linux kernel GTP-U

Harald Welte laforge at
Tue May 25 19:06:38 UTC 2021

Dear Paula,

On Mon, May 24, 2021 at 02:20:14PM +0000, Encinar Sanz, Paula (ext) wrote:
> I am investigating linux kernel GTP-U to build a 5G Core with this kernel but I understand that it does not support 5G and only works with 4G. Could you solve this doubt?

Can you please be specific?  It implements the GGSN/P-GW side of GTP-U.
GTP-U did not change from 2G to 3G to 4G to 5G.  Your statement / claim
is very broad and unspecific.  Please outline which exact
feature/functionality/procedure  you would need and which is currently
not supported?

In any case, like all of Linux, and all of Osmocom, the GTP-U kernel
module is a collaborative open source project.  Anyone can submit
contributions to extend its functionality and add whatever fetaure they
may be missing.

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- Harald Welte <laforge at>  
"Privacy in residential applications is a desirable marketing option."
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