All Questions
46
questions
0
votes
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answers
29
views
after 24.04 upgrade, unable to connect vpn l2tp
I did upgrade my ubuntu and did some apt upgrade... I tried the vpn and it was not working anymore.
This is a previously working L2TP network connection integrated with Duo(2fa).
The request is sent ...
- 209
0
votes
0
answers
55
views
VPN L2TP/ipsec ubuntu client problems | Best practice settings against watchguard firewall
I have been trying for a long time to solve the following problem. L2PT/IPSEC VPN works fine with windows and mac clients. Watchguard firewall does not have documents for settings this right way for ...
- 1
0
votes
2
answers
197
views
L2TP IPSEC not working after upgrade from Ubuntu 20 to 22
I had configured on Ubuntu20 which was working fine. Recently I upgraded the system to Ubuntu 22.04 but now I am unable to connect to the office vpn.
I am attaching the logs
journalctl -xe
May 03 12:...
0
votes
0
answers
62
views
Specify L2TP VPN to use other port
I am currently at a hotel and they seem to block VPN use. I assume they block it by looking into the port it uses.
I would like to use my company VPN (L2TP). So, I think my best bet is to change the ...
0
votes
0
answers
195
views
'Timeout was reached' network manager
I'm trying to connect to a l2tp w/ psk VPN using Ubuntu but i keep getting timeout (after less than 10 secs) was reached when trying to connect:
sending packet: from 192.168.0.100[4500] to 201.22.XXX....
- 1
0
votes
0
answers
244
views
Ubuntu 22.04 VPN issues (L2TP/IPSec)
I have a couple of machines running Ubuntu 22.04.3 LTS. I'm observing the same issue on all machines:
I can establish a connection to my VPN server.
I can ping machines, access internal websites, ...
- 9
0
votes
0
answers
426
views
VPN connection in Ubuntu 22.04 throws "MS-CHAP authentication failed"
I have Ubuntu 22.04 and a VPN that allows me to work within the servers of the company I work for. Everything worked well until today.
Now, when I try to connect, it says "Authentication failed&...
- 103
0
votes
0
answers
731
views
No L2TP VPN option on Ubuntu 23.04 (Lunar Lobster)?
Since upgrading from Ubuntu 22.04.3 LTS (Jammy Jellyfish) to Ubuntu 23.04 (Lunar Lobster), the "Layer 2 Tunneling Protocol (L2TP)" option is no longer available in the "Add VPN" ...
1
vote
1
answer
4k
views
Problem with L2TP IPSec VPN from ubuntu 22.04 [duplicate]
I have to connect to a VPN L2TP/Ipsec
Under Ubuntu 18.04, I used:
IPsec Tunnel to L2TP Server - yes
Phase1 = 3des-sha1-modp1024!
Phase2 = 3des-sha1!
Force UDP encapsulation
I have installed Ubuntu 22....
- 21
0
votes
1
answer
3k
views
L2TP / IPSec VPN Issue
I am trying to configure L2TP client on our Ubuntu 22.04 Server. I have configured the credentials and see the following errors in the Log
May 2 09:31:39 nl-live NetworkManager[31815]: xl2tpd[31815]: ...
0
votes
0
answers
554
views
L2TP/IPSec VPN on Ubuntu Server
I am trying to configure L2TP Using IPSec on ubuntu server 22.04, i have added all the necessary details under Network manager but the VPN does not seem to work and I am not able to ping any network ...
0
votes
1
answer
618
views
How can I connect two ubuntu server with L2TP v3?
My scenario is I want to run a VPN server on the Ubuntu server. but, because my ISP blocks the outbound connection to outside the country I have to first connect to a server in the data center, and ...
- 523
0
votes
0
answers
583
views
Why I don't see ppp0 interface after starting L2TP\IPSec server Ubuntu?
I used two instruction to set up my L2TP\IPSec server 1 and 2
But I don't see that xl2tpd start pppd demon. And because of this I dont see ppp0 interface. What I do wrong?
syslog:
Feb 26 14:35:24 vpn ...
- 1
0
votes
0
answers
499
views
Activation of network failed with my VPN
I have a problem with my vpn when I want to activate it, it was working fine until today.
I'm on Ubuntu 20.04 and my vpn is an L2TP vpn.
I reinstalled the VPN several times but impossible I always ...
- 1
0
votes
0
answers
2k
views
PPTP and L2TP VPN stop working on Ubuntu 22.04.1 LTS
I use VPN to access a server to work on.
The server runs in the university network, and I need to use a VPN from home to connect to the university network and access the server.
The problem is that I ...
- 21
0
votes
1
answer
666
views
L2TP VPN connection does not use manually set IP address
EDIT (2022/01/03):
As per Douglas Kosovic's answer, updating to version 1.20.08 does indeed fix this issue.
For completeness, I manually added the repository for good measure beforehand.
sudo add-apt-...
0
votes
1
answer
2k
views
L2TP/IPSec not working in LUBUNTU 20.4
I am trying to connect to my official vpn but it is not working. I am sharing some syslog and debug log. Please help
sudo tail -f /var/log/syslog
May 1 00:22:32 luser NetworkManager[440]: <info&...
1
vote
1
answer
4k
views
nmcli not showing connection
I imported L2TP/IPsec VPN connection configuration file from Ubuntu mate 20.04 /etc/NetworkManager/system-connections/ to Ubuntu server 20.04
Next, on the Ubuntu server 20.04 PC, I check the nmcli ...
- 31
0
votes
1
answer
2k
views
How to enable split tunneling with L2TP over IPsec VPN on Ubuntu 18.04
My users are able to connect to L2TP VPN without issues but are having problems with the speeds. To resolve this, I'd like to provide them instructions on how to enable split tunneling so they only ...
- 13
0
votes
0
answers
380
views
Can't ping ip adresses through L2TP VPN
I have a L2TP VPN server(Ubuntu) and Ubuntu 20.04 server. I connected to VPN in my Ubuntu, however I can't ping any ip addresses located on that network. What causes such behaviour of that VPN ...
0
votes
0
answers
1k
views
NetworkManager auto reconnect L2TP
I have this config on Ubuntu 20.04.3 LTS server:
# nmcli con show
NAME UUID TYPE DEVICE
ethernet-enp0s31f6 ecccc29f-bd3f-4bbf-82ce-b1d1978576a1 ...
- 131
0
votes
1
answer
951
views
l2tp/IPsec vpn: Cannot diable PFS
I am using Ubuntu 21.04 and I wanted to connect to a VPN. I have installed the network-manager network-manager-l2tp network-manager-gnome. I have another laptop using Fedora and installed the same ...
0
votes
0
answers
4k
views
Easiest way to setup Ubuntu as a VPN server (L2TP) for a home router to connect
I'm trying to create/deploy a VPN to solve a connection issue regarding a game I'm playing (Xbox). For this, I'm setting up a VPN on a EC2 machine on AWS and I want to connect from a home router. I ...
- 1
0
votes
0
answers
40
views
VPN trouble on wifi network change
I have a weird problem with my VPN(l2tp/IPSec) recently.
At first when I added the VPN there was no problem but when i changed my WiFi connection (came home from work!) the blocked sites that i ...
2
votes
2
answers
4k
views
L2TP IPSEC VPN cannot connect Ubuntu 18.04 Strongswan - PAP authentication failed
I'm trying to connect to a VPN server and it's not working.
Output from tail -f /var/log/syslog | grep -E "pppd|charon|NetworkManager|strongSwan|ipsec|l2tp"
NetworkManager[22546]: <info&...
- 656
2
votes
1
answer
14k
views
Ubuntu 20.04 L2TP VPN connection not working
I'm trying to connect my Ubuntu 20.04 installation with my company VPN. VPN in based on SOPHOS firewall. According to details provided by IT department we should use L2TP connection with IPsec and ...
1
vote
1
answer
2k
views
How to connect Ubuntu 20.04 minimal instance to a L2TP vpn?
I am trying to connect an Ubuntu minimal instance to a VPN. I have installed network-manager-l2tp and have configured the connection as so:
[connection]
id=vpn
uuid=7cb18238-9976-4836-8b7e-...
3
votes
0
answers
450
views
Unable to connect to L2TP/IPSec VPN via NM and xl2tp
I have been to troubleshoot all morning as to how to get connected to my employer's VPN via Network Manager. I found a number of support threads on various sites and have tried all of what was ...
- 161
4
votes
3
answers
14k
views
L2TP VPN is not working on Ubuntu 20.04. Same credential is working fine with Ubuntu 18.04
L2TP VPN is not working on newly installed Ubunut 20.04 and 20.10. Credentials are correct and same is working with Ubuntu 18.04
- 61
1
vote
1
answer
693
views
Why is DH20 not correctly negotiated with remote host when establishing an IPSec tunnel?
Trying to connect a computer to a VPN server configured this way :
Router# show isakmp policy
ISAKMP policy: L2TP_VPN
IKD_ID: 8
negotiation mode: main
proposal: 1
encryption: aes256
...
- 263
1
vote
0
answers
271
views
L2TP VPN connection is failed after reseting the BIOS on Ubuntu 18.04.5 LTS
During the L2TP VPN connection, I get the following error Activation of network connection failed. All credentials are valid since I can connect to the VPN using the Windows machine.
The connecting ...
- 11
1
vote
0
answers
363
views
Route traffic outside L2TP IPSEC VPN on Ubuntu 18.04 client
When connecting to websites like Netflix and Stadia I would like to route the traffic outside the VPN I have setup to connect to my office. It is a L2TP IPSEC VPN setup through NetworkManager on ...
- 486
0
votes
0
answers
580
views
Connecting to SoftEther from Ubuntu 18
I have installed a Softether VPN server on AWS through its Marketplace click here to check the product.
I set up the server. I have an Ubuntu 18 Machine which I want to set up a client to connect to ...
0
votes
2
answers
749
views
L2TP VPN connected but no traffic / not working
I'm using Kubuntu 20.04 and having issues with L2TP VPN
By the way it was working fine up until today, would connect and all traffic was fine. Now the VPN connects but I cant do anything.. even www....
- 101
4
votes
2
answers
3k
views
How to setup Strongswan to auth to LDAP?
I'm trying to create an L2TP/IPSEC VPN server in 20.04 that uses LDAP for user authentication.
I'm assuming Strongswan does this.
Where, in Strongswan or other configs would I add the LDAP server info?...
- 153
0
votes
0
answers
6k
views
strongSwan failed to start
I am configuring L2TP VPN on Ubuntu 20.4 client.
After the following installation from this site, when I want to restart ipsec /usr/sbin/ipsec start I get this error:
Starting strongSwan 5.8.2 IPsec [...
- 91
0
votes
1
answer
2k
views
L2TP/IPsec internet access problem
When I try to connect to a VPN (L2TP/IPsec) and don't check the option "use this connection only for resources on its network" i'm not being able to access the Internet, if i use this option i'm not ...
- 1
0
votes
0
answers
704
views
Smartcard (EAP) authencation for L2TP/IPsec VPN
I have a certificate in a smartcard that I use to connect over a VPN on Windows.
The VPN is a L2TP/IPsec, and uses EAP for authentication.
I tried multiple connection methods, some using UI (Network ...
- 101
1
vote
0
answers
2k
views
How to configure L2TP/IPSec PSK VPN on Xubuntu 18.04?
I have a Sonicwall Firewall running an L2TP VPN with a pre-shared key. I need to connect to that VPN from my Linux computer running Xubuntu 18.04. I've tried quite a few different guides that I could ...
- 21
1
vote
1
answer
1k
views
Password field is disabled int network manager vpn
I installed network-manager-l2tp-gnome and when I create new L2TP vpn connection the password field does not work
- 113
1
vote
1
answer
1k
views
After upgrade to 20.04 "Use this connection only for resources on its network" doesn't work
I have upgrade from Ubuntu 19.10 to 20.04 on my laptop. I have had two VPN connections to my office, one that route all traffic through the VPN and one that only route traffic to my office network ...
- 11
0
votes
1
answer
2k
views
DNS breaks when VPN is turned off
I have an L2TP VPN set up on Ubuntu 18.04 (set up similar to this). Whenever I turn the VPN off through the settings after using it for a while, my DNS seems to break entirely. For example, Firefox ...
- 307
0
votes
0
answers
2k
views
Enable/Disable xl2tpd when connecting to specific VPNs
G'day,
I'm an MSP and I'm in the process of trying to use Linux for my daily driver and I tend to need to connect to a lot of different VPNs. My current hurdle is that I have a particular L2TP VPN ...
- 1
3
votes
3
answers
798
views
VPN difference between 16.04 and 18.04
I have 2 PCs which I want to connect to a L2TP/IPSec VPN, one of them runs Ubuntu 16.04 and it works fine. The other one runs 18.04 and it can't connect to the server, although the settings are ...
- 107
3
votes
3
answers
7k
views
Ubuntu 19.10 l2tp VPN doesn't work anymore
After upgrading from Ubuntu 19.04 to Ubuntu 19.10, my VPN connection doesn't work anymore.
My settings:
phase1: 3des-sha1;modp1024
phase2: 3des-sha1
This worked fine so far.
I checked the packages ...
- 31
0
votes
2
answers
1k
views
How can you refresh VPN to How it Was Before Corruption?
In Ubuntu 19.10, I was able to successfully add one L2TP VPN that has been working great since installing 19.10.
However, upon adding an additional L2TP VPN, it not only didn't work, but it also ...
- 2,214