[  873.887439][T13005] PPP generic driver version 2.4.2
[  873.893901][T13005] NET: Registered PF_PPPOX protocol family
[  873.914605][T13005] l2tp_core: L2TP core driver, V2.0
[  873.927926][T13005] l2tp_ppp: PPPoL2TP kernel driver, V2.0
[  879.212772][T13077] ppp0: recursion detected
[  880.272993][T13038] ppp0: recursion detected