[Bug 1511330] Re: PPTP connection does not establish due to error: "Connection activation failed: the VPN service returned invalid configuration."

[Daniel Cantarín via ubuntu-bugs]

This affected me yesterday (2020-01-14), and today was able to work
around it with R4kk00n's comment instructions.

I'm using an up-to-date Ubuntu 18.04, so this bug is clearly still
there. Some data from my setup:

Kernel: 4.15.0-74-generic x86_64 
bits: 64 
gcc: 7.4.0
Distro: Ubuntu 18.04.3 LTS

$ apt show network-manager-pptp
Package: network-manager-pptp
Version: 1.2.6-1
(...)

$ apt show network-manager
Package: network-manager
Version: 1.10.14-0ubuntu2
(...)

-- 
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1511330

Title:
  PPTP connection does not establish due to error: "Connection
  activation failed: the VPN service returned invalid configuration."

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/network-manager-pptp/+bug/1511330/+subscriptions

-- 
ubuntu-bugs mailing list
ubuntu-bugs@lists.ubuntu.com
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs

[Bug 1511330] Re: PPTP connection does not establish due to error: "Connection activation failed: the VPN service returned invalid configuration."

[Olivier METRA]

Thanks R4kk00n, your workaround worked for me.

-- 
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1511330

Title:
  PPTP connection does not establish due to error: "Connection
  activation failed: the VPN service returned invalid configuration."

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/network-manager-pptp/+bug/1511330/+subscriptions

-- 
ubuntu-bugs mailing list
ubuntu-bugs@lists.ubuntu.com
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs

[Bug 1511330] Re: PPTP connection does not establish due to error: "Connection activation failed: the VPN service returned invalid configuration."

[R4kk00n]

After some tinkering I've found a somewhat different workaround (of you
might call it a fix) and a probable immediate cause of this behavior.

My VPN server has an address of 192.168.17.1 and it assings a range 
192.168.17.33 - 192.168.17.62 to clients. I used to manually add the following 
routes (this is supposed to like the relevant dialog):
Address Netmask Gateway Metric
192.168.17.0255.255.255.0   192.168.17.11
172.16.32.0 255.255.252.0   192.168.17.11

This did work because (I believe, cannot really bother with testing now)
Network Manager or PPTP plugin added a route to the VPN gateway
(192.168.17.1 in my case). And it no longer does. Without this route
further routes are considered invalid. This here might be a bug or it
might have been redesigned — I don't know.

Luckily there is way to enter link scoped routes in that dialog, although 
unintuitive: you just leave the "Gateway" field empty. Like this:
Address Netmask Gateway Metric
192.168.17.0255.255.255.0   1
172.16.32.0 255.255.252.0   
1
The "OK" button turns inactive after you delete a gateway, so you have to tab 
or click some other field for it to come back.

After this the connection works and the following routes get added to the 
routing table:
> ip route
default ...
 via 
...
172.16.32.0/22 dev ppp0  proto static  scope link  metric 1 
192.168.17.0/24 dev ppp0  proto static  scope link  metric 1 
192.168.17.35 dev ppp0  proto kernel  scope link  src 192.168.17.35  
metric 50 
...

Hope this helps someone else

-- 
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1511330

Title:
  PPTP connection does not establish due to error: "Connection
  activation failed: the VPN service returned invalid configuration."

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/network-manager-pptp/+bug/1511330/+subscriptions

-- 
ubuntu-bugs mailing list
ubuntu-bugs@lists.ubuntu.com
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs

Re: [Bug 1511330] Re: PPTP connection does not establish due to error: "Connection activation failed: the VPN service returned invalid configuration."

[R4kk00n]

Well, if I could work without static routes, I wouldn't see an issue. And
removing and reentering them doesn't help: I can connect with an empty
list, but it refuses to when I add a route.
I have "use this connection only for resources on its own network" checked
On 1 Dec 2015 05:45, "berend"  wrote:

> And it seems I either had a wrong static route (most likely) or re-
> entering it fixed it.
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1511330
>
> Title:
>   PPTP connection does not establish due to error: "Connection
>   activation failed: the VPN service returned invalid configuration."
>
> Status in network-manager-pptp package in Ubuntu:
>   Confirmed
>
> Bug description:
>   The PPTP connection in question used to work on Vivid, now it does not
>   connect after an upgrade to Wily.
>
>   That error description in the title comes from nmcli; it looks
>   somewhat different in the notification popup
>
>   The relevant piece of syslog is in the attached syslog-snippet.txt
>
>   I'd say that the IP config as stated in the log looks valid to me
>
>   ProblemType: Bug
>   DistroRelease: Ubuntu 15.10
>   Package: network-manager-pptp 0.9.10.0-1ubuntu1
>   ProcVersionSignature: Ubuntu 4.2.0-16.19-generic 4.2.3
>   Uname: Linux 4.2.0-16-generic x86_64
>   ApportVersion: 2.19.1-0ubuntu4
>   Architecture: amd64
>   CurrentDesktop: Unity
>   Date: Thu Oct 29 14:07:01 2015
>   InstallationDate: Installed on 2015-08-20 (69 days ago)
>   InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422)
>   SourcePackage: network-manager-pptp
>   UpgradeStatus: No upgrade log present (probably fresh install)
>
> To manage notifications about this bug go to:
>
> https://bugs.launchpad.net/ubuntu/+source/network-manager-pptp/+bug/1511330/+subscriptions
>

-- 
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1511330

Title:
  PPTP connection does not establish due to error: "Connection
  activation failed: the VPN service returned invalid configuration."

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/network-manager-pptp/+bug/1511330/+subscriptions

-- 
ubuntu-bugs mailing list
ubuntu-bugs@lists.ubuntu.com
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs

[Bug 1511330] Re: PPTP connection does not establish due to error: "Connection activation failed: the VPN service returned invalid configuration."

[berend]

And it seems I either had a wrong static route (most likely) or re-
entering it fixed it.

-- 
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1511330

Title:
  PPTP connection does not establish due to error: "Connection
  activation failed: the VPN service returned invalid configuration."

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/network-manager-pptp/+bug/1511330/+subscriptions

-- 
ubuntu-bugs mailing list
ubuntu-bugs@lists.ubuntu.com
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs

[Bug 1511330] Re: PPTP connection does not establish due to error: "Connection activation failed: the VPN service returned invalid configuration."

[berend]

I see a similar error message but when using openvpn.

-- 
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1511330

Title:
  PPTP connection does not establish due to error: "Connection
  activation failed: the VPN service returned invalid configuration."

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/network-manager-pptp/+bug/1511330/+subscriptions

-- 
ubuntu-bugs mailing list
ubuntu-bugs@lists.ubuntu.com
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs

[Bug 1511330] Re: PPTP connection does not establish due to error: "Connection activation failed: the VPN service returned invalid configuration."

[berend]

Like #3: after removing static routes, I can connect.

-- 
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1511330

Title:
  PPTP connection does not establish due to error: "Connection
  activation failed: the VPN service returned invalid configuration."

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/network-manager-pptp/+bug/1511330/+subscriptions

-- 
ubuntu-bugs mailing list
ubuntu-bugs@lists.ubuntu.com
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs

[Bug 1511330] Re: PPTP connection does not establish due to error: "Connection activation failed: the VPN service returned invalid configuration."

[R4kk00n]

** Description changed:

  The PPTP connection in question used to work on Vivid, now it does not
  connect after an upgrade to Wily.
  
- The relevant piece of syslog follows:
+ That error description in the title comes from nmcli; it looks somewhat
+ different in the notification popup
  
- Oct 29 14:03:45 monkey-mafia NetworkManager[876]:   Starting VPN 
service 'pptp'...
- Oct 29 14:03:45 monkey-mafia NetworkManager[876]:   VPN service 'pptp' 
started (org.freedesktop.NetworkManager.pptp), PID 7190
- Oct 29 14:03:45 monkey-mafia NetworkManager[876]:   VPN service 'pptp' 
appeared; activating connections
- Oct 29 14:03:45 monkey-mafia NetworkManager[876]:   VPN connection 
'Office PPTP' (ConnectInteractive) reply received.
- Oct 29 14:03:45 monkey-mafia NetworkManager[876]:   VPN plugin state 
changed: starting (3)
- Oct 29 14:03:45 monkey-mafia NetworkManager[876]: ** Message: pppd started 
with pid 7195
- Oct 29 14:03:45 monkey-mafia NetworkManager[876]:   VPN connection 
'Office PPTP' (Connect) reply received.
- Oct 29 14:03:45 monkey-mafia pppd[7195]: Plugin 
/usr/lib/pppd/2.4.6/nm-pptp-pppd-plugin.so loaded.
- Oct 29 14:03:45 monkey-mafia NetworkManager[876]: Plugin 
/usr/lib/pppd/2.4.6/nm-pptp-pppd-plugin.so loaded.
- Oct 29 14:03:45 monkey-mafia NetworkManager[876]: ** Message: 
nm-pptp-ppp-plugin: (plugin_init): initializing
- Oct 29 14:03:45 monkey-mafia pppd[7195]: pppd 2.4.6 started by root, uid 0
- Oct 29 14:03:45 monkey-mafia NetworkManager[876]: ** Message: 
nm-pptp-ppp-plugin: (nm_phasechange): status 3 / phase 'serial connection'
- Oct 29 14:03:45 monkey-mafia pppd[7195]: Using interface ppp0
- Oct 29 14:03:45 monkey-mafia pppd[7195]: Connect: ppp0 <--> /dev/pts/12
- Oct 29 14:03:45 monkey-mafia NetworkManager[876]: nm_device_get_device_type: 
assertion 'NM_IS_DEVICE (self)' failed
- Oct 29 14:03:45 monkey-mafia NetworkManager[876]:   (ppp0): new Generic 
device (carrier: UNKNOWN, driver: 'unknown', ifindex: 8)
- Oct 29 14:03:45 monkey-mafia NetworkManager[876]: Using interface ppp0
- Oct 29 14:03:45 monkey-mafia NetworkManager[876]: Connect: ppp0 <--> 
/dev/pts/12
- Oct 29 14:03:45 monkey-mafia NetworkManager[876]: ** Message: 
nm-pptp-ppp-plugin: (nm_phasechange): status 5 / phase 'establish'
- Oct 29 14:03:45 monkey-mafia pptp[7199]: nm-pptp-service-7190 
log[main:pptp.c:350]: The synchronous pptp option is NOT activated
- Oct 29 14:03:45 monkey-mafia NetworkManager[876]:   devices added 
(path: /sys/devices/virtual/net/ppp0, iface: ppp0)
- Oct 29 14:03:45 monkey-mafia NetworkManager[876]:   device added (path: 
/sys/devices/virtual/net/ppp0, iface: ppp0): no ifupdown configuration found.
- Oct 29 14:03:46 monkey-mafia pptp[7217]: nm-pptp-service-7190 
log[ctrlp_rep:pptp_ctrl.c:259]: Sent control packet type is 1 
'Start-Control-Connection-Request'
- Oct 29 14:03:46 monkey-mafia pptp[7217]: nm-pptp-service-7190 
log[ctrlp_disp:pptp_ctrl.c:781]: Received Start Control Connection Reply
- Oct 29 14:03:46 monkey-mafia pptp[7217]: nm-pptp-service-7190 
log[ctrlp_disp:pptp_ctrl.c:815]: Client connection established.
- Oct 29 14:03:47 monkey-mafia pptp[7217]: nm-pptp-service-7190 
log[ctrlp_rep:pptp_ctrl.c:259]: Sent control packet type is 7 
'Outgoing-Call-Request'
- Oct 29 14:03:47 monkey-mafia pptp[7217]: nm-pptp-service-7190 
log[ctrlp_disp:pptp_ctrl.c:900]: Received Outgoing Call Reply.
- Oct 29 14:03:47 monkey-mafia pptp[7217]: nm-pptp-service-7190 
log[ctrlp_disp:pptp_ctrl.c:939]: Outgoing call established (call ID 43272, 
peer's call ID 251).
- Oct 29 14:03:47 monkey-mafia NetworkManager[876]: ** Message: 
nm-pptp-ppp-plugin: (nm_phasechange): status 6 / phase 'authenticate'
- Oct 29 14:03:47 monkey-mafia NetworkManager[876]: ** Message: 
nm-pptp-ppp-plugin: (get_credentials): passwd-hook, requesting credentials...
- Oct 29 14:03:47 monkey-mafia NetworkManager[876]: ** Message: 
nm-pptp-ppp-plugin: (get_credentials): got credentials from NetworkManager-pptp
- Oct 29 14:03:47 monkey-mafia pppd[7195]: CHAP authentication succeeded
- Oct 29 14:03:47 monkey-mafia NetworkManager[876]: CHAP authentication 
succeeded
- Oct 29 14:03:47 monkey-mafia NetworkManager[876]: ** Message: 
nm-pptp-ppp-plugin: (nm_phasechange): status 8 / phase 'network'
- Oct 29 14:03:47 monkey-mafia pppd[7195]: MPPE 128-bit stateless compression 
enabled
- Oct 29 14:03:47 monkey-mafia NetworkManager[876]: MPPE 128-bit stateless 
compression enabled
- Oct 29 14:03:48 monkey-mafia pppd[7195]: local  IP address 192.168.17.35
- Oct 29 14:03:48 monkey-mafia pppd[7195]: remote IP address 192.168.17.1
- Oct 29 14:03:48 monkey-mafia pppd[7195]: primary   DNS address 192.168.17.1
- Oct 29 14:03:48 monkey-mafia pppd[7195]: secondary DNS address 8.8.4.4
- Oct 29 14:03:48 monkey-mafia NetworkManager[876]:   VPN connection 
'Office PPTP' (IP4 Config Get) reply received from old-style plugin.
- Oct 29 14:03:48 monkey-mafia NetworkManager[876]:   VPN Gateway: 
217.13.222.44
- Oct 29 14:03:48 monkey-mafia NetworkManager[876]:   

[Bug 1511330] Re: PPTP connection does not establish due to error: "Connection activation failed: the VPN service returned invalid configuration."

[R4kk00n]

** Summary changed:

- PPTP connection does not establish due to something "did not receive a valid 
configuration"
+ PPTP connection does not establish due to error: "Connection activation 
failed: the VPN service returned invalid configuration."

** Attachment added: "syslog-snippet.txt"
   
https://bugs.launchpad.net/ubuntu/+source/network-manager-pptp/+bug/1511330/+attachment/4518273/+files/syslog-snippet.txt

-- 
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1511330

Title:
  PPTP connection does not establish due to error: "Connection
  activation failed: the VPN service returned invalid configuration."

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/network-manager-pptp/+bug/1511330/+subscriptions

-- 
ubuntu-bugs mailing list
ubuntu-bugs@lists.ubuntu.com
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs