[  874.757920][T11251] PPP generic driver version 2.4.2
[  874.763541][T11251] NET: Registered PF_PPPOX protocol family
[  874.780584][T11251] l2tp_core: L2TP core driver, V2.0
[  874.787789][T11251] l2tp_ppp: PPPoL2TP kernel driver, V2.0
[  880.025296][T11329] ppp0: recursion detected
[  881.082372][T11291] ppp0: recursion detected