| 2013-08-27 04:31:28 |
mitch_feaster |
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:
<pre>
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...
</pre>
I also strace'd vpnc and things seemed to hang around here:
<pre>
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 ...>
</pre>
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 |
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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