xl2tpd is a layer 2 tunneling protocol client/daemon for Linux. It's typically used to configure PPP tunnels as part of a VPN. Since it provides only simple, unencrypted tunnels, it's usually used in conjunction with IPSec.

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L2TP VPN Connection on Debian Squeeze

I need to make an L2TP VPN connection from a Debian Squeeze server. What I have is: The server IP address Shared Key My username and password Just using these 3 parameteres I can establish the ...
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137 views

iPhone fails to connect to Openswan IPSec

An iPhone client fails to connect to a IPSec VPN powered by Openswan on Debian with xl2tpd and ppp. The iPhone itself keeps telling after some time "Server not responding" and /var/log/auth.log says ...
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224 views

StrongSwan + xl2tpd client timeout between 2-5 minutes

I run CentOS 6.4 on Amazon EC2, using xl2tpd-1.3.1 from EPEL repository together with StrongSwan 5.0.4. I setup a simple IPSec connection: conn l2tp type=transport keyexchange=ikev1 ...
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146 views

l2tp/pptp + freeradius (accounting information only gets updated on disconnect)

I have a basic PPTP/L2TP setup that uses a remote freeradius server with mysql. Issue is that when a user gets connected to the vpn and as long as the user stays connected (could be hours), no ...
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46 views

OpenSwan traffic logging - user, received, sent etc

Is there any way to have OpenSwan generate an access log? That would show users, and bandwidth use for every request or user session. Similar to traffic.log for OpenVPN or access.log for Squid Proxy. ...
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IPsec connection established but xl2tpd times out

This may or may not be related to my problem with passing ipsec verify. I have configured L2TP/IPsec VPN on Ubuntu 13.04 following Ubuntu's community documentation and while IPsec connection seems ...
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202 views

Cannot establish tunnel with OpenSwan/xl2tpd

I'm trying to set up L2TP/IPSec on Ubuntu as a client so that it can connect to a Check Point VPN appliance. That last point is key because the appliance does impose some restrictions on how ...
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How to configure openvpn/ppp/xl2tdp to keep using the original DNS on the clients?

I am trying to configure a VPN that does not break the intranet connections while the VPN is up (assuming that subnets are not overlapping). While this worked, I encountered the folowing problem: the ...
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753 views

Openswan + xl2tpd connections time out after a while

I have a non-NATed Openswan+xl2tpd server (Ubuntu 12.04), to which I connect with a Windows 8 behind NAT. The client loses its connection after a while of doing nothing (between 30 and 60 minutes, but ...
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VPN slow due to xl2tpd utilizes 99-100% CPU

I have a VPN up and working. The problem arises whenever xl2tpd is trafficked. It will continuously build up its CPU usage until it hits 100%. From there on the download speed declines and hovers ...
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141 views

ipsec (openswan) routing or dns issue with iphone

I got an established VPN connection, but either the routing or the resolving is not working. The configuration is taken from ...
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57 views

VPN Server Doesn't Allow Internet Access

I recently set up a VPN on my local network to test and confirm that I could do it before sending it to my production server on Amazon AWS. It worked perfectly well, and I was satisfied with the ...
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IPSec + L2TP + NAT-Traversal does not work for multiple clients behind same nat

I have recently configured a VPN server hosted in AWS EC2. Details: Centos 6.4, openswan, xl2tpd, NAT-traversal. The configuration works great for a scenario when only one user connects form a given ...
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331 views

VPN with xl2tpd and racoon - how to NAT traffic out of non-default IP address

I have a server running Debian which has networking like this: eth0 - has public IP address 1.2.3.4 eth1 - has public IP address 1.2.3.5 I'm trying to set up a VPN on the server which I can connect ...