[  850.401797][T12981] PPP generic driver version 2.4.2
[  850.407406][T12981] NET: Registered PF_PPPOX protocol family
[  850.429804][T12981] l2tp_core: L2TP core driver, V2.0
[  850.442020][T12981] l2tp_ppp: PPPoL2TP kernel driver, V2.0
[  856.000806][T13066] ppp0: recursion detected
[  857.060368][T13021] ppp0: recursion detected