[  871.862125][T13080] PPP generic driver version 2.4.2
[  871.868851][T13080] NET: Registered PF_PPPOX protocol family
[  871.891104][T13080] l2tp_core: L2TP core driver, V2.0
[  871.899573][T13080] l2tp_ppp: PPPoL2TP kernel driver, V2.0
[  877.273511][T13159] ppp0: recursion detected
[  878.339774][T13120] ppp0: recursion detected