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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1answer
68 views

How to proxy a l2tp server? [closed]

My topologic is : Host1(MyL2TP Client) <=========> Host2 (L2TP Server, SOCKS5 Proxy Client) <==========> Host3(SOCKS5 Proxy Server) <======> Internet Host2 is ubuntu14.04, how ...
3
votes
1answer
89 views

Can't Ping other local ips on l2tp vpn connection, getting: ping: sendmsg: No such device

I have setup an l2tp client using xl2tp to connect to an l2tp vpn server. The server connection requires that the connection be setup WITHOUT ipsec. So I have set up a basic xl2tp connection. The ...
0
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0answers
276 views

Strongswan IPSec + XL2TP connection not working

I am trying to set up a VPN (Strongswan + xl2tpd) between my desktop and a server in AWS both running Linux (Ubuntu) but I really am getting lost. I believe I have the IPSec part working but I am not ...
1
vote
1answer
166 views

Seeing Who is Logged into LibreSwan VPN

We recently setup a LibreSwan VPN and for the most part it is working great. One thing we are having some trouble with is trying to see who is currently logged in. I found a solution for seeing ...
1
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0answers
135 views

ubuntu xl2tp ppp0 not properly handling the DF flag (Packet Corrupt) while sending packages > defined MTU

While trying to setup an Ubuntu Linux server as a client to an l2tp/IPSEC server, I notice inconsistencies while trying to send data. The tunnel/VPN establish the connection / handshake properly and ...
1
vote
2answers
485 views

How to deny connections to xl2tp without ipsec encryption?

I try to setup l2tp+ipsec server for my mobile use and my home router use. So I made some setup and checked it works fine from android device. I see encryption on ipsec --status. My system is CentOS ...
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0answers
187 views

Separate L2TP/IPsec VPNs with dynamic VLAN assignment

I am working on a Linux (Debian 7) VPN concentrator for different kinds of remote access. One of the offered protocols is L2TP/IPsec because of the client availability. I am using xl2tpd which in turn ...
0
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1answer
567 views

Clients cannot connect to L2TP server on Ubuntu 12.04 & 14.04 LTS

I am trying to set up a L2TP/IPSec server on AWS with instance running Ubuntu 14.04LTS. I followed the instructions that I found here : https://raymii.org/s/tags/vpn.html. I tried to use 12.04LTS ...
4
votes
0answers
835 views

Android to openswan/xl2tpd/pppd error: result_code_avp: avp is incorrect size. 8 < 10

I am trying to use a simple Android 4.4.4 VPN connection to openswan/xl2tpd/pppd combo. the IPSec SA works, but xl2tpd at one point terminates the pppd and this shows up in logs: xl2tpd[17990]: ...
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0answers
2k views

Cannot connect to IPSEC/L2TP VPN Arch Linux/Windows 8

I have check a lot of other L2TP/IPsec VPN post and none of them seem to quite match the issues I am having so here is what going on. I am trying to set up a VPN on my Arch Linux server that I can ...
2
votes
1answer
600 views

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 ...
0
votes
1answer
2k 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 ...
1
vote
1answer
892 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 ...
1
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0answers
277 views

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 ...
1
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1answer
5k 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 ...
0
votes
1answer
338 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 http://louwrentius.com/blog/2011/12/setting-up-a-vpn-with-your-iphone-using-...
5
votes
1answer
738 views

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 ...
1
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1answer
922 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 ...