Ubuntu Networking :: OpenVPN Connection Isn't Working
Jan 22, 2011
I have an OpenVPN setup at work, and windows clients are able to connect fine. On my dual-boot system (Windows XP 64-bit and Ubuntu 10.10 64-bit) I'm able to connect on Windows but not Ubuntu. I use the same files for each. The network manager wasn't working, so I'm doing it via the command line right now:
Below is the output (sanitized)
Code:
Does this mean it's connected? If so, I'm not able to ping anything on the remote network, not even the OpenVPN server.
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Apr 5, 2010
i have some problems with configuring openvpn tunnel connection to my openvpn server. I'm using static-key tcp connection. Network manager always said to me that connection could not be established. Also, when i try to run openvpn from terminal, i got some strange permissions problem:
Code:
openvpn --config config.ovpn
Mon Apr 5 15:48:37 2010 OpenVPN 2.1_rc19 i486-pc-linux-gnu [SSL] [LZO2] [EPOLL] [PKCS11] built on Oct 13 2009
Mon Apr 5 15:48:37 2010 NOTE: OpenVPN 2.1 requires '--script-security 2' or higher to call user-defined scripts or executables
Mon Apr 5 15:48:37 2010 /usr/sbin/openvpn-vulnkey -q moj.key
[code]....
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May 8, 2010
I have problem in making connection to my vpn server I can make connection from windows xp to that but can not open any website and I can not ping 172.16.10.1 when connection established.
These are my configuration files:
server config file:
Quote:
client configuration file:
Quote:
And this is my server syslog tailed file:
Quote:
And I added this routing to /etc/rc.d:
Quote:
And this is my iptable:
Quote:
And vpn connection is lost after establishing a lot.
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Aug 21, 2010
I'm using OpenVPN to connect to a remote system. When I run
Code:
It brings up a new tunnel interface. The problem is that once the tun interface is brought up and the VPN is established, my whole Internet connection slows to a crawl.
Here is the output from ip route show before openvpn:
Code:
And after openvpn:
Code:
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Dec 5, 2010
I have an openvpn bridge up and running (ubuntu to ubuntu, both in vmware fusion machines on macs). My problem is that I cannot get a connection faster than ~9mbps even though 20+mbps is available. I've been troubleshooting for a while and have tried many fixes. I just now did ethtool tap0 and I think maybe I found it. It says the link is 10mbps. I tried to change it with:
sudo ethtool -s tap0 speed 100
but it says ethtool cant change speed on tap0. How can i define the link speed of tap0?
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Jul 20, 2011
I have installed OpenVPN for network-manager using "sudo apt-get install network-manager-openvpn". Now I have it in my network-manager, but I dont know how to configure a connection, I have a configuration script, when I import that script in network-manager it automatically creates a connection, but still problems exists ...
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Jul 12, 2011
I am having problems setting up openvpn with networkmanager. I am running fedora15 with the newest networkmanager. Okay here is some info...
openvpn runs at boot time no problem...
Here is a copy of the boot time message from /var/log/messages
Code:
Here is a copy of tun0 from the ifconfig, and also you can see that openvpn is running from the command "netstat -ntl"
Code:
Here is the options i am using for server.conf for openvpn.
Code:
Okay well when i try to add openvpn to network manager i select the openvpn option and it ask for the required fields.
For gateway i am using -> 10.0.0.0
ALL other options i am just using the defaults...
Now i am not sure if they options that i am using is correct... if anyone has any input i would love to hear some.
Now when i try to start New VPN Connection from network manager it fails to connect and here is what i am getting from /var/log/messages
Code:
If you want to recommend command line options instead of using the network manager gui i am okay with that...
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Sep 7, 2010
I have setup an OpenVPN server on Ubuntu server. I am able to connect with Windows clients. I am, however, unable to correctly connect using Ubuntu.
If the router firewall is blocking the pings to keep the connection alive, then the connection initially does not work, but will work after the first timeout and reconnect. If the firewall does not block the pings then the initial connection attempt never times and therefore the connection does not work.
Attached is the readout from the client.
The first attempt gives error ERROR: Linux route add command failed: external program exited with error status: 7
Successive attempts work, they just time out every two minutes.
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Jun 23, 2010
My network is barely functional. I'm running 2 linux servers connected by openvpn (tun) through routers on both sides. There are Windows clients (98 and XP) on both subnets. One server (ls3) acting as PDC for the domain. The Windows clients use the respective linux boxes as gateways. On the server side (ls3 which is both openvpn server and samba server), all the clients can read/write properly to shares on both sides. The problems are all on the client side. Share connections to the server side disconnect after a few moments.
Browsing on the client side windows machines is fine. I can see shares on the server side. Some server side files open and are readable, writable, other server side files will not open. Some samba logon scripts on the server side can be opened from the client side. Others open after a long wait to a blank file! Permissions on server side files are set to 777 for testing. If a file won't open or reads "blank", that doesn't change no matter how many times you try. A non-readable/writable file overwritten by a readable/writable one can be read and written to!
I can ping successfully from any client on either side to any other client by either ip address or workstation name. Firewalls on both side are set to forward tcp and udp traffic going to port 1194 to the respective gateway linux boxes. Iptables on both linux gateways are down for testing. I tried reversing the openvpn server/client roles with the same result; the same physical side of the network had the problem. On one of the windows 98 clients, I wiped out the networking configuration completely and rebuilt it from scratch. Same result.
One one of the windows xp clients, I tried to rejoin the domain. It went through successfully but the result was the same as above. The network was operating smoothly for several years until the client side dsl modem broke last week. It was replaced with a newer model and at the same time I migrated from a pptp connection to openvpn. How to resolve this, Is this something to do with openvpn? Is this a network hardware problem? Am I missing something in the port forwarding on the routers? My smb.conf files are ancient except I added interface tun0. I have never seen 2 files sitting next to each other in the same directory where one opens and the other doesn't!
I'm running Mandrake 9.2 on the client side and Mandriva 2008 on the server side. I have a Sonicwall firewall on the server side, a Westell 7500 on the client side. I note that during the modem install, the http port was opened to the linux box on the client side and the access log got huge over the weekend and I ran out of disk space until I closed it down and deleted the log. I tried a simple test while viewing /var/log/daemons/errors on the client side. From a windows workstation in the client subnet, I opened a dos window and tried to print a file located on the samba server on the openvpn server machine which I knew NOT to be problematic.
The file printed and there were no errors reported in the log. I repeated the test with a known problematic file. The file would not print. The errors log noted:
Authenticate/Decrypt packet error: packet HMAC authentication failed
I regenerated the static.key file on the server side and scp'd it to the client side and restarted both openvpn's. I checked for duplicate files named static.key on both sides. Same error.
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Nov 19, 2010
I installed all the necessary packages for the networkmanager-openvpn function to function. The openvpn-connection-setting are successfully imported into the networkmanger via the conf file but the apply button is grayed out, so that actually saving and using the connection isn't possible? Does anyone know, where the problem is? It's a fresh install of Ubuntu 10.10 after the upgrade from 10.04 sent the networkmanger down the drain.
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Jun 4, 2011
As I reported in this bug:[URL].. root is not able to start an openvpn-connection via the "nmcli"-command to control NetworkManager, whereas my user does not run in any problems with this command. My error output when starting as root is as follows:
Code:
# nmcli con up id "my-openvpn"
Active connection state: unknown
Active connection path: /org/freedesktop/NetworkManager/ActiveConnection/5
state: VPN connecting (need authentication) (2)
Error: Connection activation failed: no valid VPN secrets.
Does anybody know what to do about this strange behaviour? The vpn-secret seems to be stored in the gnome-keyring and in the /etc/NetworkManager/system-connections/my-openvpn simultaneously. But root cannot access any of these. Why this is important? I'm trying to set up a dispatcher-script to automatically start openvpn on eth-connection. but this does throw the exact error from above (no valid vpn secrets..).
[Code]...
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Jul 18, 2011
I can connect to the internet with wired connection. The switch for the device is on but this command "sudo lshw -C network" has the following results:
#
[sudo] password for nn:
*-network
description: Network controller
product: BCM4312 802.11a/b/g
[Code]....
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May 31, 2010
I am trying to connect to an OpenVPN connection using the gnome-network manager.
I'd like to point out that using the configuration file in /etc/openvpn works perfectly but I have no way of knowing if the connection has dropped.
When I set up the connection in the nm it connects for a few seconds then fails. The /var/log/messages file shows this:
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May 16, 2010
I an unable to connect to an openvpn connection in ubuntu karmic. I have installed openvpn , I added the user certificate, CA certificate , Private key and the conf file in the /etc/openvpn directory. Also followed the steps given here [URL]..community/OpenSSL under "Importing a Certificate into the System-Wide Certificate Authority Database" , but still when I try openvpn --config linux_client.conf I get the following error.
Mon May 10 21:58:57 2010 /usr/bin/openssl-vulnkey -q -b 2048 -m <modulus omitted>
Mon May 10 21:58:57 2010 LZO compression initialized
Mon May 10 21:58:57 2010 Control Channel MTU parms [ L:1542 D:138 EF:38 EB:0 ET:0 EL:0 ]
Mon May 10 21:58:57 2010 Data Channel MTU parms [ L:1542 D:1450 EF:42 EB:135 ET:0 EL:0 AF:3/1 ]
Mon May 10 21:58:57 2010 Local Options hash (VER=V4): '41690919'
[Code]...
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Aug 6, 2010
I have freshly installed OpenSUSE 11.3 64 bit and reimported my old openvpn connections via Network Manager. Connection can be established fine, but after 3 to 6 seconds (pings) it will stop to receive any packets on the tun device.
I tried disabling the firewall, starting openvpn manually, no avail. I checked the message log and the openvpn output, no messages recorded.
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Oct 29, 2010
When I make a vpn connection to an openvpn server, I loose the internet connection.
The VPN works all right.
Server config (extract)
Client config
Client route without the VPN connection
client route with VPN connected (internet lost)
Is there anything I can do to the push rule of the servers's config file?
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Jan 19, 2011
I can get a tunnel connected via terminal with: openvpn --config client.ovpn
However, when I tried to use the "friedly" gui (gadmin-openvpn-client), it keeps telling me to "import server certificates into client first."
I don't know what that means. Nor, do I see a tun device.
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Sep 6, 2011
I have succesflly installed OpenVPN server and clients(followed tuts). Everything is great, however when I have openvpn connection established on the clients I loose the basic internet connection in the browser, but my clients can see the vpn server(even I can ssh to the server via the openvpn client ip). I am guessing that all the traffic is routed through the server. I am just not knowledgable enough with routing , iptables and internet sharing. I am using tun based setup on OpenVPN. I am just not even sure if this is a server or a client issue, sorry for ignorance and illeteracy.
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Jul 5, 2010
I installed OpenVPN, placed conf, keys and certs into /etc/openvpn/. I did
Code:
sudo openvpn --conf /etc/openvpn/client.conf
And everything seemed alright, but when I actually try accessing something that I need VPN for, it doesn't work (it's the same as if I wasn't in VPN). I also tried using GOpenVPN but the results are exactly the same. I know the confs are ok as I use the exact same files on Windows 7 and everything's fine. I even disabled ufw, restated machine etc, just to be sure.
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May 8, 2010
Is there any way to run successfully umtsmon with kvpnc? Trying to build up a connection to a VPN provider using his profile openvpn and kvpnc. It connects as "low level connection" , the indicator of kvpnc remains red, but then kvpnc would not pass the network traffic through umts-mon (or better vice versa, umtsmon doesn't). In principle I would like to pass both interfaces (wireless, umts) through vpn.
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Feb 3, 2010
I just recently installed Ubuntu 9.10 on a dell laptop. My WiFi connection that I've been using on the same computer for years is not working when I log on. However if I run the burnt image cd and choose the option "Use Ubuntu without making any changes to your computer" I am asked if I want install proprietary drivers. If I activate one "Broadcom STA" I can connect to the wireless connection in my house. When I am using the version installed on my laptop it doesn't ask me if I want to install the drivers and it doesn't even find them when I go to hardware drivers under system. So to sum it up I can get connection when I run Ubuntu from the cd but not when I run the Ubuntu on my laptop.
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May 8, 2010
My lan connection to my router isn't working i have it plugged in the cable is good ( fyi i do have some computer knowledge) So my wireless is working right when i booted up but my lan is not. i have a @#$^ i am afraid to say what it is lol dell with their integrated ethernet card. OS: ubuntu 10.04 everything works fine but the wired connection.
Dlink router with all of the settings made properly. i read somewhere about doing a whole bunch of stuff but i thought that since this was a higher version they would have that problem fixed. i also have aim or msn whichever is more preferred. i hopefully will be notified that someone has responded to this thread.
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Sep 11, 2010
I'm recent to Ubuntu and have just installed version 10.04 32bits desktop version along side my Windows XP.My wireless internet connection works perfectly under Windows XP as this thread can prove it, but it does not work on Ubuntu.When checking the connections on Ubuntu I see:Wireless Network - disconnected.
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Oct 25, 2010
Recently installed Ubuntu 10.04 on HP Pavillion ze5400.Wireless card is bcm94306MP. Wireless connection shows as disconnected. I am troubleshooting using the Ubuntu documentation on solving wifi problems. Ran ishw and it appears I do not have a driver properly installed. Obtained what I believe is the driver: bcmwl5.inf and bcmwl5.sys. Installed bcmwl5.inf using ndisgtk. I know its there as I can see it in System>admin>windows wireless drivers. However lshw still does not show it under configuration. I understand I must put the sys file in the same folder as where this inf file got installed. I assume all I do is copy and paste it into that folder. Is this correct? Next I need to find that folder. I tried the command find /home -name bcmwl5.inf and it did not show up. Can someone educate me just how to do this, that is find the folder and insert the sys file?
After I pass this hurdle then I will tackle trying to configure the card.
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Nov 1, 2010
I have a wired problem in Ubuntu 10.10, My Ubuntu can connect with Wireless network, however it cannot connect to Wired Connection. I installed dual System, one is Ubuntu 10.10, the other one is Win7. Under Win7, I can both connect to the Internet in Wired or Wireless mode.
The more wired phenomenon is: When I plug in the cable, I can see the icon connected in my network manager. But I cannot visit any URLs. By checking the "ifconfig -a", I can see the IP addr was assigned to my eth0.
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Dec 4, 2010
installed Ubuntu 10.04 on my Dell 1564. My cabled netwo connection is not working.buntu has been dual booted with Windows 7. Internet connection on Windows is working. I have an ADSL modem connected to my laptop via the cable.I have given the details of commands asked to be execute(viewed various posts).
isr@ISR:~$ lspci
00:00.0 Host bridge: Intel Corporation Core Processor DRAM Controller (rev 12)
00:01.0 PCI bridge: Intel Corporation Core Processor PCI Express x16 Root Port (rev 12)
[code]...
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Jan 7, 2011
Running a wired connection through a Linksys router that suddenly stopped working today.I thought this was a ipv6 issue sinced I enabled some of those settings to share a connection with my PS3.I have since disabled IPv6 in Firefox and through the grub. The RealTek adapter will not even show a connection through the network manager when connected.The onboard adapter will show a connection, give me a ip address and MAC but still will not load the internet. I've tried uninstalling and reinstalling both adapters through the network connections, as well as reinstalling Firefox to no avail.I've also tried using Open DNS servers.I cannot ping through the network tools either. Hard for me to paste a ifconfig since I'm on my laptop.I'm running Ubuntu 10.10 (not dual booting).I did some updates this morning but it worked fine for a little while after that, until I tried to connect to my PS3.
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Jan 12, 2011
I am using ubuntu 10.10 and facing problem with cisco VPN connection. VPN connection is getting successful but not able to connect to destination servers.I also tried to add default gw to the the IP which is assigned to my VPN connection but still access to VPN machines not working.
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Jul 27, 2011
When I start my Ubuntu machine, it says "eth0 connection established". But i could not able to ping to other machines available in LAN & also to Internet.
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Sep 1, 2011
I recently installed 11.04 on my PC (was running 9.04), and beforehand "tried it out" and networking was fine. I could access the internet no problem.I then ran the install, and fully formatted my HDD (i have 1 HDD for the OS and another for storage)It crashed halfway thorough, so no problem, i just re-formatted the hardrive and installed.However, It didnt connect to the internet, I literally tried every single forum looking for the solution, including editing the Network interface file.After a bit of diggingfound my user privileges did not allow me to connect to ethernet, and randomly use audio devices.SO, no problem I checked the boxes, but it still wont connect to the ethernet now, and it was fine before, tried re-installing twice with full format, but still doesnt work.
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