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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L2TP/IPSec PreShared Key VPN

I tried to setup a L2TP/IPsec VPN server with PSK authentication according to this tutorial on a Ubuntu server but there is a problem when I'm trying to connect to this server with a Windows 7 client. ...
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How to connect to xl2tp on linux?

I have install an l2tp server named xl2tp, I want to know if there is any l2tp client for linux which can connect the server?
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Error connecting to Sonicwall L2TP VPN from iPad/iPhone

A client has a Sonicwall Pro 2040 running SonicOS 3.0, and they'd like to be able to use the L2TP VPN client from their iPads to connect to internal services (Citrix, etc). I've enabled the L2TP VPN ...
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How to issue machine certificates to Android devices trying to connect to L2TP VPN (L2TP/IPsec with Certificate)?

I are trying to find a way to connect Android devices to our VPN box running Windows Sever 2008. We manage to configure a couple Android devices to connect via PPTP. However, I would like to be able ...
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557 views

Can I host a VPN service on a shared Windows Host I already have?

I have a windows hosting plan with Plesk control panel, FTP, email and other popular options already found in common windows hosting plans. I want to know whether I can convert my hosting plan to a ...
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iptables rules to allow L2TP/IPSEC VPN behind firewall

I asked about this on the Smoothwall Express forums but they are understandably reluctant to provide to much help. After all, they really want to sell the commercial version. I need to provide an ...
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859 views

Is there any L2TP client without IPsec?

I want to use L2TP to through NAT, but i do not need IPsec, because IPsec waste much CPU. I can setup one L2TP server on linux, so is there any L2TP windows client without IPsec ?
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Extract number of users connected to IPSsec/L2tpd server

We have a new corporate VPN server running Ipsec (Openswan) + xl2tpd + pppd. When a user connects, pppd runs the /etc/ppp/auth-up script which logs the time and username that has connected to /var/log/...
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Disconnected after connecting to VPN when using remote desktop

I need to be able to remote desktop to a Windows 2008 machine and then from that machine connect to our corporate L2TP VPN. However, as soon as the VPN connects, the remote desktop session hangs and I ...
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What is difference between L2TP and PPTP?

I need a high performance VPN server, who can tell me the difference between L2TP and PPTP ?
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218 views

redhat5 and l2tp client

Hi i am trying to setup a VPN connection with my redhat 5 machine the VPN server I am using suggested that l2tp will work much better then my current pptp setup (which does not really usable) any ...
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IPsec/L2TP VPN with OSX client: xl2tpd reports “maximum retries exceeded”

I'm following this guide for getting an IPsec/L2TP VPN server set up on a Gentoo machine, and I'm having trouble getting an OS X client to connect. From the logs, I believe I'm making an IPsec ...
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iPad/iPhone L2TP VPN locks up SonicWall NSA2400 Randomly

Ok so I've got iPad/iPhone's connecting to my network via L2TP VPN setup interfacing with a Sonicwall NSA 2400 gateway. The problem is that sometimes when the iPad/iPhone is connected over the VPN ...
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Mac and L2TP VPN no problems, xp, vista and 7 no go :s

I've got some weird problem and I'm out off options. The situation: When connecting from my mac to the VPN server (Windows Server 2003 R2) with L2TP PSK, everything works like it should. However, ...
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L2TP iptables port forward

I'm setting up port forwarding for an L2TP VPN connection to the local Windows 2003 VPN server. The router is a simpel Debian machine with iptables. The VPN server works perfect. But I cannot log in ...
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Configuring OS X L2TP VPN to use Certificate for IPSEC layer instead of Pre Shared Key

I'm trying to setup a L2TP VPN on an OS X Snow Leopard Server setup, and have had success using a pre-shared key, however I would rather not rely on a simple string, and use a certificate instead. ...
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396 views

How do you enable L2TP in a Cisco Firewall?

I am trying to find out how to allow L2TP traffic through a PIX 515e firewall. Windows 2003 is already configured. Thank you. EDIT: 6.1(2) is the sh version response.
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Using Ubuntu Karmic as an L2TP Client for VPN

I'm trying to connect to a VPN service over L2TP using Karmic as a client and it's not working. The only details I have are the remote IP address, username & password, and a shared secret string; ...
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OpenSwan + xl2tpd VPN: How can I share Internet connection

I have an OpenSwan IPSec + L2TP VPN on Linux setup working from off of my server so I can connect to it from my laptop (roadwarrior setup). I am able to connect to the VPN remotely just fine, however ...
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Setting-up Windows Server 2003 as an L2TP/IPSEC VPN server

I'm looking for a pointer to step-by-step instructions for setting-up a Win Server 2003 Std box as a L2TP/IPSEC VPN server. I don't need to use certificates - pre-shared key is sufficient - and the ...
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1answer
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L2TP and IPSEC from Windows XP: Where do I put the IPSEC group name?

I'm completely new to networking, but need to setup a VPN. I have a linksys router and have gone through and set it up to use IPSEC and have setup a group name, user, password and pre-shared key. But ...
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Cisco ASA 5505 - L2TP over IPsec

I have followed this document on cisco site to set up the L2TP over IPsec connection. When I try to establish a VPN to ASA 5505 from my Windows XP, after I click on "connect" button, the "Connecting ....
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650 views

Linux L2TP Daemon Recommendation

I need to setup a tunnel between two points with no encryption. I know this is generally done using L2TP but what would be the recommended daemon to use. I know of rp-l2tp which I have used in the ...
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L2TP client for Ubuntu

It's easy enough to get a pptp client going on a Ubuntu 9.04 (Jaunty) desktop: sudo apt-get install network-manager-pptp However, I can't seem to find documentation find a corresponding L2TP ...
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Does VPN Service on a “Standard” OS X Server use L2TP or PP2P?

Does VPN Service on a "Standard" OS X Server use L2TP or PP2P?