Jan  9 11:07:14 carbon pppd[3856]: Serial connection established.
Jan  9 11:07:14 carbon pppd[3856]: using channel 4
Jan  9 11:07:14 carbon pppd[3856]: Using interface ppp0
Jan  9 11:07:14 carbon pppd[3856]: Connect: ppp0 <--> /dev/ttyACM0
Jan  9 11:07:14 carbon NetworkManager[715]: <info>  [1483956434.9143] manager: (ppp0): new Generic device (/org/freedesktop/NetworkManager/Devices/7)
Jan  9 11:07:14 carbon NetworkManager[715]: <info>  [1483956434.9288] devices added (path: /sys/devices/virtual/net/ppp0, iface: ppp0)
Jan  9 11:07:14 carbon NetworkManager[715]: <info>  [1483956434.9289] device added (path: /sys/devices/virtual/net/ppp0, iface: ppp0): no ifupdown configuration found.
Jan  9 11:07:15 carbon pppd[3856]: sent [LCP ConfReq id=0x1 <asyncmap 0x0> <magic 0x1fca8788> <pcomp> <accomp>]
Jan  9 11:07:15 carbon pppd[3856]: rcvd [LCP ConfReq id=0x2 <auth chap MD5> <accomp> <pcomp> <mru 1500> <asyncmap 0x0> <magic 0xc1023860>]
Jan  9 11:07:15 carbon pppd[3856]: sent [LCP ConfNak id=0x2 <auth chap MS-v2>]
Jan  9 11:07:15 carbon pppd[3856]: rcvd [LCP ConfAck id=0x1 <asyncmap 0x0> <magic 0x1fca8788> <pcomp> <accomp>]
Jan  9 11:07:15 carbon pppd[3856]: rcvd [LCP ConfReq id=0x3 <auth pap> <accomp> <pcomp> <mru 1500> <asyncmap 0x0> <magic 0xc1023860>]
Jan  9 11:07:15 carbon pppd[3856]: sent [LCP ConfAck id=0x3 <auth pap> <accomp> <pcomp> <mru 1500> <asyncmap 0x0> <magic 0xc1023860>]
Jan  9 11:07:15 carbon pppd[3856]: sent [LCP EchoReq id=0x0 magic=0x1fca8788]
Jan  9 11:07:15 carbon pppd[3856]: sent [PAP AuthReq id=0x1 user="blank" password=<hidden>]
Jan  9 11:07:15 carbon pppd[3856]: rcvd [LCP EchoRep id=0x0 magic=0xc1023860]
Jan  9 11:07:15 carbon pppd[3856]: rcvd [PAP AuthAck id=0x1 "Congratulations!"]
Jan  9 11:07:15 carbon pppd[3856]: Remote message: Congratulations!
Jan  9 11:07:15 carbon pppd[3856]: PAP authentication succeeded
Jan  9 11:07:15 carbon pppd[3856]: sent [IPCP ConfReq id=0x1 <addr 0.0.0.0> <ms-dns1 0.0.0.0> <ms-dns2 0.0.0.0>]
Jan  9 11:07:15 carbon pppd[3856]: rcvd [LCP TermReq id=0x1]
Jan  9 11:07:15 carbon pppd[3856]: LCP terminated by peer
Jan  9 11:07:15 carbon pppd[3856]: sent [LCP TermAck id=0x1]
Jan  9 11:07:15 carbon pppd[3856]: Hangup (SIGHUP)
Jan  9 11:07:15 carbon pppd[3856]: Modem hangup
Jan  9 11:07:15 carbon pppd[3856]: Connection terminated.