In-kernel PPPoE issues

[Emmanuel Dreyfus <manu%netbsd.org@localhost>]

Hello

I have been using in-kernel PPPoE for FTTH on NetBSD 9.3 for a
while.  A few days ago, it ceased to work. Switching to rp-pppoe
from pkgsrc worked around the problem, hence I suspect some 
infrastructure change exposed a NetBSD PPPoE bug.

Here are the kernel messages. I also have network packet capture for
whoever is interested.

pppoe: input for unknown session 0xb8f1, sending PADT
pppoe: connected to lac-1.pa3.par.fra
pppoe: connected to lac-1.pa3.par.fra
pppoe0: received unexpected PADO
pppoe: connected to lac-2.brs.par.fra
pppoe0: host unique tag found, but it belongs to a connection in state 3
pppoe: received PADO but could not find request for it
pppoe: connected to lac-2.brs.par.fra
pppoe0: host unique tag found, but it belongs to a connection in state 3
pppoe: received PADO but could not find request for it
pppoe: connected to lac-1.pa3.par.fra
pppoe: received PADO but could not find request for it
pppoe: connected to lac-1.pa3.par.fra
pppoe: received PADO but could not find request for it
pppoe: connected to lac-2.brs.par.fra
pppoe: received PADO but could not find request for it
pppoe: connected to lac-2.brs.par.fra
pppoe: received PADO but could not find request for it
pppoe: input for unknown session 0xc30d, sending PADT

-- 
Emmanuel Dreyfus
manu%netbsd.org@localhost