Apr 25 18:22:31 localhost systemd: Starting Level 2 Tunnel Protocol Daemon (L2TP)...
Apr 25 18:22:31 localhost kernel: PPP generic driver version 2.4.2
Apr 25 18:22:31 localhost kernel: NET: Registered protocol family 24
Apr 25 18:22:31 localhost kernel: l2tp_core: L2TP core driver, V2.0
Apr 25 18:22:31 localhost kernel: l2tp_netlink: L2TP netlink interface
Apr 25 18:22:31 localhost kernel: l2tp_ppp: PPPoL2TP kernel driver, V2.0
Apr 25 18:22:31 localhost systemd: Started Level 2 Tunnel Protocol Daemon (L2TP).
Apr 25 18:22:31 localhost xl2tpd: xl2tpd[2465]: Not looking for kernel SAref support.
Apr 25 18:22:31 localhost xl2tpd: xl2tpd[2465]: Using l2tp kernel support.
Apr 25 18:22:31 localhost xl2tpd: xl2tpd[2465]: xl2tpd version xl2tpd-1.3.8 started on localhost.localdomain PID:2465
Apr 25 18:22:31 localhost xl2tpd: xl2tpd[2465]: Written by Mark Spencer, Copyright (C) 1998, Adtran, Inc.
Apr 25 18:22:31 localhost xl2tpd: xl2tpd[2465]: Forked by Scott Balmos and David Stipp, (C) 2001
Apr 25 18:22:31 localhost xl2tpd: xl2tpd[2465]: Inherited by Jeff McAdams, (C) 2002
Apr 25 18:22:31 localhost xl2tpd: xl2tpd[2465]: Forked again by Xelerance (www.xelerance.com) (C) 2006-2016
Apr 25 18:22:31 localhost xl2tpd: xl2tpd[2465]: Listening on IP address 0.0.0.0, port 1701
Apr 25 18:22:31 localhost xl2tpd: xl2tpd[2465]: Connecting to host 80.80.80.80, port 1701
Apr 25 18:22:39 localhost ipsec_starter[2472]: Warning: ignored obsolete keyword 'nat_traversal'
Apr 25 18:22:39 localhost ipsec_starter[2472]: Warning: ignored obsolete keyword 'oe'
Apr 25 18:22:39 localhost ipsec_starter[2472]: Warning: ignored obsolete keyword 'plutoopts'
Apr 25 18:22:39 localhost ipsec_starter[2484]: Warning: ignored obsolete keyword 'nat_traversal'
Apr 25 18:22:39 localhost ipsec_starter[2484]: Warning: ignored obsolete keyword 'oe'
Apr 25 18:22:39 localhost ipsec_starter[2484]: Warning: ignored obsolete keyword 'plutoopts'
Apr 25 18:23:02 localhost xl2tpd: xl2tpd[2465]: Maximum retries exceeded for tunnel 6267.  Closing.
Apr 25 18:23:02 localhost xl2tpd: xl2tpd[2465]: Connection 0 closed to 80.80.80.80, port 1701 (Timeout)
Apr 25 18:23:33 localhost xl2tpd: xl2tpd[2465]: Unable to deliver closing message for tunnel 6267. Destroying anyway.
Apr 25 18:23:33 localhost xl2tpd: xl2tpd[2465]: Will redial in 5 seconds
Apr 25 18:23:38 localhost xl2tpd: xl2tpd[2465]: Connecting to host 80.80.80.80, port 1701
Apr 25 18:23:40 localhost xl2tpd: xl2tpd[2465]: Connection established to 80.80.80.80, 1701.  Local: 47276, Remote: 27505 (ref=0/0).
Apr 25 18:23:40 localhost xl2tpd: xl2tpd[2465]: Calling on tunnel 47276
Apr 25 18:23:40 localhost xl2tpd: xl2tpd[2465]: Call established with 80.80.80.80, Local: 1730, Remote: 33466, Serial: 1 (ref=0/0)
Apr 25 18:23:40 localhost pppd[2516]: Plugin pppol2tp.so loaded.
Apr 25 18:23:40 localhost pppd[2516]: pppd 2.4.5 started by root, uid 0
Apr 25 18:23:40 localhost pppd[2516]: Using interface ppp0
Apr 25 18:23:40 localhost pppd[2516]: Connect: ppp0 <-->
Apr 25 18:23:40 localhost pppd[2516]: Overriding mtu 1500 to 1410
Apr 25 18:23:40 localhost pppd[2516]: Overriding mru 1500 to mtu value 1410
Apr 25 18:23:40 localhost NetworkManager[677]: <info>  [1524669820.2152] manager: (ppp0): new Generic device (/org/freedesktop/NetworkManager/Devices/5)
Apr 25 18:23:40 localhost pppd[2516]: CHAP authentication succeeded
Apr 25 18:23:40 localhost pppd[2516]: Could not determine remote IP address: defaulting to 10.64.64.64
Apr 25 18:23:40 localhost pppd[2516]: not replacing existing default route via 192.168.80.1
Apr 25 18:23:40 localhost pppd[2516]: Cannot determine ethernet address for proxy ARP
Apr 25 18:23:40 localhost pppd[2516]: local  IP address 192.168.20.2
Apr 25 18:23:40 localhost pppd[2516]: remote IP address 10.64.64.64
Apr 25 18:23:40 localhost pppd[2516]: primary   DNS address 192.168.1.1
Apr 25 18:23:40 localhost pppd[2516]: secondary DNS address 8.8.8.8
Apr 25 18:25:00 localhost xl2tpd: xl2tpd[2465]: Session 'L2TP' already active!
Apr 25 18:25:48 localhost xl2tpd: xl2tpd[2465]: check_control: Received out of order control packet on tunnel 27505 (got 3, expected 4)
Apr 25 18:25:48 localhost xl2tpd: xl2tpd[2465]: handle_packet: bad control packet!
Apr 25 18:25:48 localhost xl2tpd: xl2tpd[2465]: check_control: Received out of order control packet on tunnel 27505 (got 3, expected 4)
Apr 25 18:25:48 localhost xl2tpd: xl2tpd[2465]: handle_packet: bad control packet!