[Bug 1217183] Re: libgcrypt11 version 1.5.0-3ubuntu2.2 breaks vpnc for cisco 3000 gateway

[John Pang]

I'm not sure this is a problem with libgcrypt11. I had the same messages
in my syslog as those posted... but it turns out that it was my password
had expired. The syslog didn't tell me anything to indicate an expired
password, but as soon as my vpn password got reset, I could connect
again.

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Title:
  libgcrypt11 version 1.5.0-3ubuntu2.2 breaks vpnc for cisco 3000
  gateway

Status in “libgcrypt11” package in Ubuntu:
  Confirmed

Bug description:
  It appears that version 1.5.0-3ubuntu2.2 of libgcrypt11 breaks vpnc
  for some cisco 3000 vpn gateways. Ever since I updated I haven't been
  able to connect, but today I rolled back to
  libgcrypt11=1.5.0-3ubuntu2.1 and things are working again. Note that I
  tried with 1.5.0-3ubuntu2.2 immediately before rolling back so it's
  highly unlikely that anything changes on the cisco gateway side to fix
  it.

  With libgcrypt11=1.5.0-3ubuntu2.2 I was seeing the following messages
  in /var/log/syslog:

      Aug 21 22:44:56 sonbuntu NetworkManager[1193]:    SCPlugin-Ifupdown: devices added (path: /sys/devices/virtual/net/tun0, iface: tun0)
      Aug 21 22:44:56 sonbuntu NetworkManager[1193]:    SCPlugin-Ifupdown: device added (path: /sys/devices/virtual/net/tun0, iface: tun0): no ifupdown configuration found.
      Aug 21 22:44:56 sonbuntu NetworkManager[1193]: <warn> /sys/devices/virtual/net/tun0: couldn't determine device driver; ignoring...
      Aug 21 22:47:06 sonbuntu avahi-daemon[1116]: Withdrawing workstation service for tun0.
      Aug 21 22:47:06 sonbuntu NetworkManager[1193]:    SCPlugin-Ifupdown: devices removed (path: /sys/devices/virtual/net/tun0, iface: tun0)
      Aug 21 22:48:08 sonbuntu NetworkManager[1193]:    SCPlugin-Ifupdown: devices added (path: /sys/devices/virtual/net/tun0, iface: tun0)
      Aug 21 22:48:08 sonbuntu NetworkManager[1193]:    SCPlugin-Ifupdown: device added (path: /sys/devices/virtual/net/tun0, iface: tun0): no ifupdown configuration found.
      Aug 21 22:48:08 sonbuntu NetworkManager[1193]: <warn> /sys/devices/virtual/net/tun0: couldn't determine device driver; ignoring...

  I also strace'd vpnc and things seemed to hang around here:

      time(NULL)                              = 1377150323
      times({tms_utime=8, tms_stime=1, tms_cutime=0, tms_cstime=0}) = 1717972828
      gettimeofday({1377150323, 725505}, NULL) = 0
      getrusage(RUSAGE_SELF, {ru_utime={0, 88000}, ru_stime={0, 16000}, ...}) = 0
      time(NULL)                              = 1377150323
      times({tms_utime=8, tms_stime=1, tms_cutime=0, tms_cstime=0}) = 1717972828
      time(NULL)                              = 1377150323
      poll([{fd=3, events=POLLIN}], 1, 96000) = 0 (Timeout)
      poll([{fd=3, events=POLLIN}], 1, 192000^C <unfinished ...>

  
  After rolling back to libgcrypt11=1.5.0-3ubuntu2.1 I don't see these messages and I can successfully connect to my vpn.

  See also: http://askubuntu.com/questions/335694/vpnc-has-stopped-
  working-with-cisco-vpn-gateway-ubuntu-13-04

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