[  875.257545][T12985] PPP generic driver version 2.4.2
[  875.264715][T12985] NET: Registered PF_PPPOX protocol family
[  875.293654][T12985] l2tp_core: L2TP core driver, V2.0
[  875.301794][T12985] l2tp_ppp: PPPoL2TP kernel driver, V2.0
[  880.785859][T13063] ppp0: recursion detected
[  881.841069][T13018] ppp0: recursion detected