[  922.140099][T12991] PPP generic driver version 2.4.2
[  922.153978][T12991] NET: Registered PF_PPPOX protocol family
[  922.170990][T12991] l2tp_core: L2TP core driver, V2.0
[  922.183867][T12991] l2tp_ppp: PPPoL2TP kernel driver, V2.0
[  927.610340][T13063] ppp0: recursion detected
[  928.686639][T13024] ppp0: recursion detected