[  841.006596][T11105] PPP generic driver version 2.4.2
[  841.011979][T11105] NET: Registered PF_PPPOX protocol family
[  841.028475][T11105] l2tp_core: L2TP core driver, V2.0
[  841.034395][T11105] l2tp_ppp: PPPoL2TP kernel driver, V2.0
[  849.003867][T11277] iperf3 (11277) used greatest stack depth: 22672 bytes left
[  849.121446][T11281] ppp0: recursion detected
[  850.177982][T11144] ppp0: recursion detected