[  846.698602][T10800] PPP generic driver version 2.4.2
[  846.712742][T10800] NET: Registered PF_PPPOX protocol family
[  846.724363][T10800] l2tp_core: L2TP core driver, V2.0
[  846.732022][T10800] l2tp_ppp: PPPoL2TP kernel driver, V2.0
[  851.909340][T10871] iperf3 (10871) used greatest stack depth: 22704 bytes left
[  852.019549][T10875] ppp0: recursion detected
[  853.073536][T10832] ppp0: recursion detected