[  872.463611][T12963] PPP generic driver version 2.4.2
[  872.469086][T12963] NET: Registered PF_PPPOX protocol family
[  872.485470][T12963] l2tp_core: L2TP core driver, V2.0
[  872.491379][T12963] l2tp_ppp: PPPoL2TP kernel driver, V2.0
[  877.564202][T13042] ppp0: recursion detected
[  878.625089][T12999] ppp0: recursion detected