[  872.743718][T12981] PPP generic driver version 2.4.2
[  872.750569][T12981] NET: Registered PF_PPPOX protocol family
[  872.775236][T12981] l2tp_core: L2TP core driver, V2.0
[  872.783674][T12981] l2tp_ppp: PPPoL2TP kernel driver, V2.0
[  877.926060][    C1] ppp0: recursion detected
[  877.936000][T13061] ppp0: recursion detected
[  879.003425][T13022] ppp0: recursion detected