[  867.638716][T12980] PPP generic driver version 2.4.2
[  867.645074][T12980] NET: Registered PF_PPPOX protocol family
[  867.663063][T12980] l2tp_core: L2TP core driver, V2.0
[  867.670007][T12980] l2tp_ppp: PPPoL2TP kernel driver, V2.0
[  873.006040][T13057] ppp0: recursion detected
[  874.090788][T13019] ppp0: recursion detected