HOWTO: Connect to a Microsoft PPTP VPN

[HautingLu]

If you are having problem connecting to a Windows 2003 server's VPN server, try this:

In VPN Configuration panel:

in "Authentication" tab, check "refuse EAP"

in "Compression and Encryption" tab, check both "Require MPPE encryption" and "Require 128 bit MPPE encryption".


That did the trick for me!

Thank You!!!!

Now if I can only get Terminal Server Client to work.

[msprygada]

OK, I can create a VPN connection. I then left click on the Network Manager in the notifications area. I select VPN Connections and the VPN connection I created. It opens the "Authenticate Connection" dialog box. I enter my login (domain\userid) and password. I click "Remember Password for this Session" and click "OK". The "Authenticate Connection" dialog box disappears and nothing seems to happen. Should I get a connection window or notification as it is attempting to connect like it does in Windows? If I go back into the Network Manager, I do not have Disconnect VPN as an option in the VPN connection menu so I am assuming that I am not connected plus I cannot get anywhere on my companies network.

I did the terminal commands of installing and killing the network manager and all this worked as expected.

Any help would really be appreciated.

Matt

[jim.guenzel]

This worked for me after giving up on pptp config
pptp config worked in 6.06 but not in 6.1 or 7.04.

This worked for me in 7.04. I used net work manger

From the root terminal

sudo apt-get install network-manager-gnome

then

sudo apt-get install network-manager-ppt

then

reboot

the network app ought to show up in the upper right work bar

if not then
/usr/sbin/NetworkManager

I also ran network manager as sudo once before rebooting
sudo nm-applet


Then click on the applet in the upper right work bar it to connect and to configure / add the vpn

Thanks
Jim

[schierly]

I have the following VPN connection on my Win XP working, but I dont get it to work in Ubuntu Feisty AMD64.

I tried the pptp network manager plugin, which lets me create and select the VPN Network. Nevertheless it seems that I can't connect to the internet. The network card is working fine, I receive the DNS Server and an IP Address, but to be able to use the Internet, I need to connect to 172.16.0.1. In Windows all encryptions are dissabled.

Can anyone help me.

Windows-IP-Konfiguration

        Host Name. . . . . . . . . . . . . : axel
        Primary DNS-Suffix . . . . . . . : 
        Node Typ . . . . . . . . . . . . : Hybrid
        IP-Routing enabled. . . . . . . : No
        WINS-Proxy enabled. . . . . . . : No
        DNS-Suffix Search List . . . . . . . : xxx.bbb.tld # 

Ethernetadapter LAN-Verbindung:

       Connection specific DNS Suffix: xxx.bbb.tld
        Description. . . . . . . . . . . : Fast Ethernet Card
        Physical Address . . . . . . : xx-E0-xx-92-00-00
        DHCP enabled. . . . . . . . . . : yes
        Autoconfiguration enabled . . . : yes
        IP-Address. . . . . . . . . . . . : 172.16.1.77
        Subnet Mask. . . . . . . . . . . : 255.255.0.0
        Default Gateway . . . . . . . . . : 172.16.0.1
        DHCP-Server . . . . . . . . . . . : 193.170.62.162
        DNS-Servers. . . . . . . . . . . . : 172.16.0.1
        Primärer WINS-Server. . . . . . . : 172.16.0.1

PPP-Adapter INTERNET:

        Connection specific DNS Suffix 
        Description. . . . . . . . . . . : WAN (PPP/SLIP) Interface
        Physical Addresse . . . . . . : 00-53-45-00-00-00
        DHCP enabled. . . . . . . . . . : Nein
        IP-Address. . . . . . . . . . . . : 192.168.10.4
        Subnet Mask. . . . . . . . . . . : 255.255.255.255
        Default Gateway . . . . . . . . . : 192.168.10.4
        DNS-Server. . . . . . . . . . . . : 172.16.0.1
                                            172.16.0.1

/var/log/messages

Sep  6 22:49:26 xxx-desktop kernel: [ 2049.368231] nm-ppp-auth-dia[8301]: segfault at 00000000
00000088 rip 00002ae13c02821b rsp 00007fff74612f30 error 4

I maybe have to add a route or so, but which one? Can anybody help?

EDIT [SOLVED]

Never believe Windows when it's saying that's a VPN Connection. The connection typ was a point to point connection.
I did the setup through the config files of linux-pptp , and it's working now.

[OskarB]

Hi,

I tried to follow the howto in the first post... but I'm not sure if I got it right... is it any way to see if the VPN works?

When I write in the servername (http://www.sobernet.nu) in Evolution I get no Error-prompt.. but I dont get any answere mails from the server either...

Anyone know how I can see if the vpn-connection is OK?

Thanks!

//Oskar

[Snipershot]

I'm silly, ignore this message for now.

[sarasotab]

I followed the instructions, but pptpconfig would not install. The following error ensued:

The following packages have unmet dependencies:
pptpconfig: Depends: php-gtk-pcntl (>= 1.0.0) but it is not going to be installed
E: Broken packages
root@ubuntu-laptop:~#

Is there something I am missing? I am running Dapper 6.06 Lts

Bob

[coloured]

Here is the fix for this problem below - http://ubuntuforums.org/showthread.php?t=547991

OK, I can create a VPN connection. I then left click on the Network Manager in the notifications area. I select VPN Connections and the VPN connection I created. It opens the "Authenticate Connection" dialog box. I enter my login (domain\userid) and password. I click "Remember Password for this Session" and click "OK". The "Authenticate Connection" dialog box disappears and nothing seems to happen. Should I get a connection window or notification as it is attempting to connect like it does in Windows? If I go back into the Network Manager, I do not have Disconnect VPN as an option in the VPN connection menu so I am assuming that I am not connected plus I cannot get anywhere on my companies network.

I did the terminal commands of installing and killing the network manager and all this worked as expected.

Any help would really be appreciated.

Matt

[Snipershot]

Sep 11 03:11:10 sharine pppd[27199]: using channel 17
Sep 11 03:11:11 sharine pppd[27199]: sent [LCP ConfReq id=0x1 <mru 1416> <asyncmap 0x0> <magic 0xb1e2038d> <pcomp> <accomp>]
Sep 11 03:11:11 sharine pppd[27199]: rcvd [LCP ConfReq id=0xac <accomp> <pcomp> <magic 0xd8be53a6> <auth pap> <mrru 1600> <ssnhf> <endpoint [MAC:00:15:c5:f7:da:e9]>]
Sep 11 03:11:11 sharine pppd[27199]: sent [LCP ConfRej id=0xac <mrru 1600> <ssnhf>]
Sep 11 03:11:11 sharine pppd[27199]: rcvd [LCP ConfAck id=0x1 <mru 1416> <asyncmap 0x0> <magic 0xb1e2038d> <pcomp> <accomp>]
Sep 11 03:11:11 sharine pppd[27199]: rcvd [LCP ConfReq id=0xad <accomp> <pcomp> <magic 0xd8be53a6> <auth pap>]
Sep 11 03:11:11 sharine pppd[27199]: sent [LCP ConfNak id=0xad <auth chap MS-v2>]
Sep 11 03:11:11 sharine pppd[27199]: rcvd [LCP ConfReq id=0xae <accomp> <pcomp> <magic 0xd8be53a6> <auth pap>]
Sep 11 03:11:11 sharine pppd[27199]: sent [LCP ConfNak id=0xae <auth chap MS-v2>]
Sep 11 03:11:11 sharine pppd[27199]: rcvd [LCP ConfReq id=0xaf <accomp> <pcomp> <magic 0xd8be53a6> <auth pap>]
Sep 11 03:11:11 sharine pppd[27199]: sent [LCP ConfNak id=0xaf <auth chap MS-v2>]
Sep 11 03:11:11 sharine pppd[27199]: rcvd [LCP ConfReq id=0xb0 <accomp> <pcomp> <magic 0xd8be53a6> <auth pap>]
Sep 11 03:11:11 sharine pppd[27199]: sent [LCP ConfNak id=0xb0 <auth chap MS-v2>]
Sep 11 03:11:11 sharine pppd[27199]: rcvd [LCP ConfReq id=0xb1 <accomp> <pcomp> <magic 0xd8be53a6> <auth pap>]
Sep 11 03:11:11 sharine pppd[27199]: sent [LCP ConfNak id=0xb1 <auth chap MS-v2>]
Sep 11 03:11:11 sharine pppd[27199]: rcvd [LCP ConfReq id=0xb2 <accomp> <pcomp> <magic 0xd8be53a6> <auth pap>]
Sep 11 03:11:11 sharine pppd[27199]: sent [LCP ConfRej id=0xb2 <auth pap>]
Sep 11 03:11:11 sharine pppd[27199]: rcvd [LCP ConfReq id=0xb3 <accomp> <pcomp> <magic 0xd8be53a6> <auth pap>]
Sep 11 03:11:11 sharine pppd[27199]: sent [LCP ConfRej id=0xb3 <auth pap>]
Sep 11 03:11:11 sharine pppd[27199]: rcvd [LCP ConfReq id=0xb4 <accomp> <pcomp> <magic 0xd8be53a6> <auth pap>]
Sep 11 03:11:11 sharine pppd[27199]: sent [LCP ConfRej id=0xb4 <auth pap>]
Sep 11 03:11:11 sharine pppd[27199]: rcvd [LCP ConfReq id=0xb5 <accomp> <pcomp> <magic 0xd8be53a6> <auth pap>]
Sep 11 03:11:11 sharine pppd[27199]: sent [LCP ConfRej id=0xb5 <auth pap>]
Sep 11 03:11:11 sharine pppd[27199]: Script /usr/sbin/pptp 10.0.0.1 --nolaunchpppd finished (pid 27200), status = 0x0

Ive fiddled around and i feel I'm now ready to ask for some help. What does this log tell you that I'm doing wrong? If anything.

[tphillippe]

KevinBuntu's advice (post #116) worked great for me.