[  861.150404][T11239] PPP generic driver version 2.4.2
[  861.157949][T11239] NET: Registered PF_PPPOX protocol family
[  861.187140][T11239] l2tp_core: L2TP core driver, V2.0
[  861.195060][T11239] l2tp_ppp: PPPoL2TP kernel driver, V2.0
[  866.269261][T11315] iperf3 (11315) used greatest stack depth: 22576 bytes left
[  866.408093][T11319] ppp0: recursion detected
[  867.474135][T11279] ppp0: recursion detected