[  872.565910][T13081] PPP generic driver version 2.4.2
[  872.573464][T13081] NET: Registered PF_PPPOX protocol family
[  872.596106][T13081] l2tp_core: L2TP core driver, V2.0
[  872.604524][T13081] l2tp_ppp: PPPoL2TP kernel driver, V2.0
[  877.759744][T13152] ppp0: recursion detected
[  878.824313][T13115] ppp0: recursion detected