[  853.136599][T12981] PPP generic driver version 2.4.2
[  853.143494][T12981] NET: Registered PF_PPPOX protocol family
[  853.166812][T12981] l2tp_core: L2TP core driver, V2.0
[  853.172786][T12981] l2tp_ppp: PPPoL2TP kernel driver, V2.0
[  858.517929][T13066] ppp0: recursion detected
[  859.572285][T13019] ppp0: recursion detected