Questions tagged [l2tp]
Layer 2 Tunnelling Protocol is a layer 7 networking protocol which provides an unsecure layer 2 tunnel. It runs on top of UDP, and is commonly used to carry PPP sessions. Security is usually provided with the addition of IPsec.
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Specify l2tpv3 ethernet's CircuitID and DigestHash in linux
How can I Create a l2tpv3 tunnel in linux and specify circuit id and digest hash (tunnel between linux and mikrotik)
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Windows 11 L2TP and IPSEC: Where to set the IpSec group
First of all:
I know : L2TP and IPSEC from Windows XP: Where do I put the IPSEC group name? exists, but the answer is incorrect and is not working on Windows 11 (please do not duplicate this topic by ...
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OpenVPN, L2TP or PPTP client to proxy (http or socks 4/5)
I'm looking for a way to open a proxy server on Windows or Linux which is bound to a client of OpenVPN or L2TP or PPTP, so the user that is connecting to the proxy is gonna connect to the VPN server ...
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Quickbooks Multi-User mode with VPN Users
At my company we currently are using the Quickbooks Desktop edition and its using Quickbooks Database Server manager to host a Multi-User Mode solution for our network. Normally we are able to have ...
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L2TP VPN disconnects after requests to NAS in VPN network
I installed a L2TP IPsec VPN over a Unifi USG for a client of mine.
Everything works like a charm, expect one user, that tries to connect with a MacStudio. He permanently gets disconnected after he ...
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Packet forwarding for L2TP/IPSec VPN
I have 2 Server:
Server 1: MikroTik RouterOS (Setting up L2TP vpn server) [out of my country]
Server 2: Fresh Ubuntu 20.04 OS [in my country]
I can't connect to Server 1 via L2TP connection (protocol ...
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VPN client creation on Ubuntu with strongswan fails
I've set up a L2TP VPN server on my home router and the connection between Windows 10 clients works properly. Now I want to set up a VPN client on a Ubuntu 18.04 machine. I've used this configuration (...
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How do I expose an L2TP client as a socks5/http proxy?
I want to be able to do this:
curl on client with proxy configured -> L2TP client which acts as a socks5 server -> L2TP server on the remote machine
I don't control the remote machine, and ...
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Configure VPN via .PBK file
There is some software which can only configure VPN/L2TP-IPSec connection using pbk file (GUI has very limited number of the options).
I'm looking for pbk documentation but unsuccessul. I see a few ...
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L2TP and IPSEC from Windows 11: Where do I put the IPSEC group name? [duplicate]
EDIT: This question is not related to "L2TP and IPSEC from Windows XP: Where do I put the IPSEC group name?". This question has the similar prerequisites and the same goal, but for a ...
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The specified protocol identifier is not known to the router Windows server 2022
Im trying to configure L2TP vpn on windows server 2022.
Everything goes well except when client trying to connect it shows this error :
Things ive done :
1- The l2tp preshared key are same.(server/...
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Windows server 2022 ports required for vpn connections have been blocked by the firewall
Im trying to enable VPN server(L2TP) inside windows 2022. everything goes as plan but in the end
the Remote Access Management Console Shows this error :
Ive also added rule for 1701 port in firewall ...
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Setup L2TP Ubuntu Server without IPSec (yes I know thats very odd)
Im trying to tunnell my traffic from a bunch of low end mikrotik routers through a L2PT tunnel, and these routers are not powerful enough to run encryption. I have Ubuntu 20.04 VPS, and have ...
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Ubuntu L2TP Server not allow to connect multiple devices
Till today, this website showed me some answers that solve the problem. But it seems I couldn't find the correct answer to this problem.
I have a project for a VPN network for remote service purposes, ...
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Connection failed using L2TP on Ubuntu 20
I am trying to establish a VPN connection but I am unable to do so. The issues points to PPP as can be seen in the log output below. However, I am not quite sure what I can make out of this:
/var/log/...
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Upgraded to Windows 11 now L2TP VPN Connection Fails
I upgraded to Windows 11 now my VPN connections fail. They were working right before the update. The error is...
The L2TP connection attempt failed because the security layer encountered a ...
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Is it possible to have L2TP/IPsec VPN auto disconnect after x hours?
I couldn't find anything on Google, everything that I found was related to the opposite problem, VPN disconnecting when people don't want it to.
A little backstory: one of our potential clients needs ...
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L2TP Issues AWS EC2
I'm trying to set up l2tp inside an AWS VPC, I'm having problems.
I'm on a MAC OS and I keep getting an error "A connection could not be established to the PPP server. Try reconnecting. If the ...
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How to encode Pre-Shared Key (PSK) of and L2TP IPSEC connection managed by Network-Manager
If I create a VPN L2TP IPSEC connection using Network-Manager GUI, I introduce the PSK, but this one looks different on /etc/NetworkManager/system-connection/myvpn.nmconnection
I am thinking the PSK ...
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Ubuntu Server 20.04 network-manager not starting VPN automatically
I am getting desperate here. I need to connect a Ubuntu Server Machine on a VPS to a network to monitor several machines. I can only connect to the network with L2TP over IPsec.
I have tried ...
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RDP fails to connect across L2TP VPN
I have a working L2TP VPN that I can ping all clients once connected, name resolution does not work but I believe that is a separate issue. I cannot connect using RDP between two Windows 10 machines. ...
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Configuring L2TP VPN to use with iOS 14 and macOS Big Sur
After Apple did this in Big Sur OS I can't connect to my own VPN on Libreswan 3.27 (netkey) on 3.10.0-1160.6.1.el7.x86_64
Starting with iOS 14 and macOS Big Sur (coming soon), IPsec supports
HMAC-SHA-...
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Cant connect to VPN via L2TP/IPsec on mac, but connection on windows works
I've setup connection on one of our mac computers running MacOS 10.13.6 High Sierra. I've entered user, password, preshared key ect. but I Cant connect to VPN (getting VPN server did not respond error)...
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Is there a speed and performance difference between VPNs (L2TP, etc.) vs. port forwarding?
Let's say you wanted to transfer a 1 GB file from a machine at site 1 to a machine at site 2. You can either connect the two machines via a VPN (L2TP) or basic port forwarding. Which connection method ...
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How to route traffic between L2TP/IPSec and WireGuard tunnels?
I have a KVM VPS running Ubuntu 18.04 which is simultaneously:
L2TP server (xl2tpd + strongswan) with IP 192.168.42.1/24
Wireguard client with IP 192.168.73.3/24 (server's IP is 192.168.73.1/24)
...
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What is an authentication method for L2TP or IKEv2 VPN that sends the username and password?
Google's GSuite Secure LDAP does not expose userPassword.
CHAP, MSCHAP and other authentication do not send the password. They assume the server knows the password and can use a challenge.
Because ...
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In a VPN, how to access resources inside a connected office from the VPN server
I have this Windows Server running on AWS, running a VPN with RRAS and NPS. The initial setup included only SSTP, and the users could easily connect from their Windows computers on their homes and use ...
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Always hung on Vi, vim, but not nano when using company VPN
I have a strange problem. IT changed the VPN to a newer Cisco device.
After connecting to the VPN, I can ssh to one of our corporate server.
I can ls, cd, cat, sudo.
BUT if I tried any editing using ...
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How to force the server to set ppp0 and ppp1 for the specified VPN connections?
I have two different VPN connections on a server as below:
The first connection from a mikrotik server (192.168.100.128 as the client) to the main server (192.168.100.99 as the host with ppp0).
The ...
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VPN between 2 Mikrotik routers and static IP using LTE USB Modem
I am trying to setup a VPN tunnel between two sites. Both sites are using a Mikrotik U951 with two Jazz 4G modems. Each 4G service has been allocated a static IP.
The main problem is that I am trying ...
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l2tp/ipsec unable to connect on linux
I'm trying to connect to cisco l2tp/ipsec vpn with PSK and IKEv1 username/password.
According to this article, I've found that server supports following authentification methods:
SA=(Enc=3DES Hash=MD5 ...
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Wrong certificate used when using the Windows L2TP VPN client
I have my VPN security gateway configured to only allow clients having a VPN computer certificate issued by a specific CA.
Such a certificate is correctly installed on the client side.
In addition to ...
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Diagnose L2TP VPN connection failures in CentOS 7
My local machine CentOS Linux release 7.7.1908 (Core) connects to my workplace VPN using LT2P IPSec with PSK. I have two gateways, but since both of them produce similar logs, I'm going to post one of ...
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Failure to connect to a L2TP VPN over IPSec on Ubuntu 16.04
I am having issues connecting to my company's L2TP VPN over IPSEC. This is a Pelink Balance 305 router which has been configured correctly. I have checked that other colleagues have been able to ...
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Windows Server 2016 - L2TP VPN local network issuse
we configured VPN access to our server via L2TP with preshared key to tunnel our RDP admin connection. Everything works fine if we need to just connect to the server - We are behind NAT from out ISP ...
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Why can I not connect to VPN? Domain Joined and mentions "device compliance"
I have the wonderful challenge of setting up our Unifi USG to accept connections from individual domain-joined laptops. I got the supported L2TP server working (as I have used this already for months ...
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Unable to Connect L2TP IPSec VPN on Mac OSX [closed]
I'm struggling to debug an issue connecting a Mac to a L2TP IPsec VPN.
Macbook Pro running Mojave 10.14.6, following instructions here https://forum.peplink.com/t/setting-up-l2tp-with-ipsec/8046
I ...
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What Does This L2TP/IPSec Error Mean?
I am trying to connect to a Cisco Meraki VPN that uses L2TP/IPsec. On my side I am using Libreswan/NetworkManager to configure my connection. When I try to connect, I get logs as follows:
Mar 02 11:...
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RDP connection failed after logging into VPN (L2TP/IPSec) on a sever
I have a virtual machine Win 10, and I can connect to it via RDP (Remote Desktop Protocol) from my local laptop. Now I want to establish a VPN (L2TP/IPSec) on the remote Win 10 to a third host, ...
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L2TP (xl2tpd) IP Address Allocation
I’m making my own study of different ways to establish tunnels between Debian server (LNS) and Android OS (LAC). In case of L2TP without any encryption, LACs should routing traffic through ppp tunnel ...
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Route trafic from one wAP to VPN
i have two mikrotik routers.
One router - 2011 (main) has public static IP address and has L2TP over ipsec vpn server running on it. I can connect to it from laptops and mobiles. When i connected, my ...
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route l2tp server to openvpn client
i configured l2tp/ipsec server on ubuntu
also i installed openvpn client on this server
i need when l2tp client connect to this server traffic forward to openvpn and client get openvpn server ip ...
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TP-LINK TL-MR6400 IPSEC L2TP VPN tunnel with GCP server
I have a TP-LINK TL-MR6400 router, connected to internet by means of an LTE sim.
This is a very rough network diagram of my current situation.1
My IoT services sit behind the TL-MR6400.
Unfortunately ...
google-cloud-platform
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Setup l2tp using Strongswan
I setup ikev2 using Strongswan, Now I need to add l2tp support to that
What is the best and easy method to add l2tp support to Strongswan?
Appreciate for any help
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No internet access through L2TP/Ipsec using Ubuntu 18.04 - Routing table
I have set up a VPN network using the package https://github.com/nm-l2tp/NetworkManager-l2tp.
The VPN works well (on certain situations) but I think there's a problem with the routing.
When I'm not ...
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Connect Ubuntu 19.04 Server to Ubiquity Unifi USG L2TP VPN Server?
I am trying to connect a remote Ubuntu Server 19.04 instance to a Ubiquity Unifi USG L2TP VPN Server.
I have the VPN server set up as an L2TP server with PSK and verified that it is working by ...
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L2TP over IPSEC strongswan/xl2tpd slow connection debian 9 and 10
I have tried almost anything - my internet connection 500 Mbit/s
I connect from the same external IP subnet so my speed to the server is also 500 Mbit/s.
When i use wget from my l2tp server i have ...
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Strongswan CentOS 7 to Mikrotik Router L2TP VPN "NO_PRPOSAL_CHOSEN"
I have reviewed existing Q&A on this issue and, maybe there's a hook I'm not seeing, but I don't know what else to try.
I get this output when attempting to launch VPN from CentOS "client":
[...
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Windows Server 2019 - L2TP VPN in RRAS only accessable from internal interface, not from external
I have a problem installing a L2TP VPN Connection with Windows Server 2019.
There are two interfaces:
"Intern" - 10.0.0.1 / Internal interface
"Extern" - 192.168.2.3 / External interface, connected ...
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L2TP VPN connection not working - PAYLOAD_MALFORMED
I am trying to replace an old VMWare server (ESXI 5.1.0) with a new one (ESXI 6.7.0) and to do that we are trying to replicate the setup of the old one.
We have another physical server that needs to ...
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