[  852.617245][T12985] PPP generic driver version 2.4.2
[  852.628373][T12985] NET: Registered PF_PPPOX protocol family
[  852.652068][T12985] l2tp_core: L2TP core driver, V2.0
[  852.658358][T12985] l2tp_ppp: PPPoL2TP kernel driver, V2.0
[  858.017380][T13063] ppp0: recursion detected
[  859.078996][T13018] ppp0: recursion detected
[  859.243596][T13018] xl2tpd (13018) used greatest stack depth: 22672 bytes left