[  872.257050][T12980] PPP generic driver version 2.4.2
[  872.273519][T12980] NET: Registered PF_PPPOX protocol family
[  872.296558][T12980] l2tp_core: L2TP core driver, V2.0
[  872.304220][T12980] l2tp_ppp: PPPoL2TP kernel driver, V2.0
[  877.578130][T13052] ppp0: recursion detected
[  878.668155][T13012] ppp0: recursion detected