[  872.710449][T12961] PPP generic driver version 2.4.2
[  872.717237][T12961] NET: Registered PF_PPPOX protocol family
[  872.734211][T12961] l2tp_core: L2TP core driver, V2.0
[  872.743387][T12961] l2tp_ppp: PPPoL2TP kernel driver, V2.0
[  878.023957][T13046] ppp0: recursion detected
[  879.082613][T13001] ppp0: recursion detected