[  872.851980][T12970] PPP generic driver version 2.4.2
[  872.865307][T12970] NET: Registered PF_PPPOX protocol family
[  872.887538][T12970] l2tp_core: L2TP core driver, V2.0
[  872.894179][T12970] l2tp_ppp: PPPoL2TP kernel driver, V2.0
[  878.453979][T13048] ppp0: recursion detected
[  879.516725][T13002] ppp0: recursion detected