All Questions
22
questions
2
votes
1
answer
2k
views
OpenSwan IPsec tunnel to Azure Gateway is established but unable to connect
I am currently trying to set up a IPsec tunnel between my on-premise center and to the VPN in Azure. I am setting up OpenSwan 2.6.23 on an Ubuntu Lucid box, and my box is behind a NAT.
ipsec.conf
...
- 43
0
votes
1
answer
1k
views
Policy based routing in linux based on destination address.
I am struggling with a scenario. Suppose we have two systems in same subnet A:- 192.168.1.5 and B:-192.168.1.6 where B is further connected with C:-172.22.1.5 through Openswan. B can ping C but A cant ...
- 204
0
votes
0
answers
1k
views
IPsec VPN with subnet overlapping and NAT
I'm trying to configure, through OpenSwan on a Linux Ubuntu 14.04 the following scenario.
It's an interesting configuration and it would be great to understand why I'm failing configuring correctly, ...
- 173
1
vote
1
answer
3k
views
OpenSwan - IPSec VPN - tunnel established but can't see a specific server there
I have to connect my server to a VPN tunnel thought Internet to see a local server that is on IP 192.168.20.100
Here are IPSec AND IKE settings from server (not mine , I do not own the VPN server)
...
- 11
4
votes
3
answers
17k
views
Connecting to a FortiGate VPN from a remote Linux machine via OpenSwan
Here's the setup:
I have a FortiGate unit on a business network, which has a FortiGate VPN set up. Machines on a remote network that can run FortiClient (Windows and Mac machines) have no problem ...
- 41
0
votes
1
answer
2k
views
Malformed Payload recieved from juniper firewall to libreswan while setting up an IPSec Tunnel
I have a CentOS system with libreswan behind a router with static IP, and I have been trying to setup an IPSec tunnel with a server at remote location having juniper firewall. The IPSec VPN settings ...
- 3
1
vote
1
answer
6k
views
How to start and stop a libreswan connection
I have a connection configured on my libreswan instance on two machines.
The connection start automatically when I start the pluto daemon, I have try other settings, but the connection also starts if ...
- 11
0
votes
1
answer
104
views
IP Addresses over IPSec
I've got four hosts setup as follows:
I've got an IPSec tunnel via OpenSwan over the internet between Servers B and C. Servers A and D are configured to route traffic to the other via B and C ...
- 29
2
votes
0
answers
3k
views
Creating redundant IPSec connections using OpenSwan
I have a linux (netkey) instance with openswan installed, the instance has two connection to the same IPSec peer that needs to act as redundant connections. both connections' properties are the same (...
- 21
0
votes
0
answers
2k
views
OpenSwan IPsec connection drops after 30 seconds
I'm trying to connect from my Linux Mint 16 box to a CloudStack server through IPsec L2TP. Building up the connection works (pings work across the tunnel). However 30 seconds later the IPsec tunnel ...
- 1
-1
votes
1
answer
272
views
Openswan stopped writing to /var/log/secure after log deletion
I deleted the log intentionally but it seems like Openswan is not creating a new one on it's own. I tried restarting the service or even creating an empty file. Nothing works.
What can I do besides ...
- 649
2
votes
1
answer
9k
views
Configure ipsec vpn tunnel (network to network with IKE with preshared key) on Centos 6 with openswan
I have Cisco Linksys router configured as VPN gateway (network to network) :
Now I wanna configure ipsec VPN similarly on Centos 6 with openswan. I was looking in internet but have no luck (there are ...
- 5,278
4
votes
2
answers
20k
views
Openswan tunnel up, but works only in one direction
I've successfully established an IPsec connection, but it works only partially. One side does not send out packets through the tunnel. It seems as if the network topology is unclear to this side.
...
- 121
1
vote
1
answer
5k
views
Centos 6.3 OpenSWAN doesn't find my connection
I've been tearing my hair off in frustration for too long and decided Serverfault might be able to help. Could anyone somehow explain this?
I've reinstalled openswan/ipsec with purge multiple times, ...
- 578
8
votes
1
answer
10k
views
Can OpenSWAN replace OpenVPN?
Background
I have a working OpenVPN setup right now, where users can connect the the private network at home with their computers.
However most phones only support IPSec, so I would like to offer ...
- 10.6k
0
votes
2
answers
39k
views
OpenSwan IPSec phase #2 complications
Phase #1 (IKE) succeeds without any problems (verified at the target host).
Phase #2 (IPSec), however, is erroneous at some point (apparently due to misconfiguration on localhost).
This should be an ...
- 125
6
votes
1
answer
66k
views
IPsec VPN site-to-site: How should I configure the ipsec.conf files on both sites to get the tunnel up?
What I am trying to do is to create a site-to-site IPsec VPN between my network and my friend's network. We both have a router and two computers on each router, with all computers running Linux. So I ...
- 107
2
votes
1
answer
3k
views
VPN iptables Forwarding: Net-to-net
I've tried to look elsewhere on this site but I couldn't find anything matching this problem. Right now I have an ipsec tunnel open between our local network and a remote network.
Currently, the ...
- 131
4
votes
0
answers
1k
views
How do I configure OpenSwan to allow pure IPsec (not L2TP) connections from an iPhone?
Similar to this question, I want to configure an IPsec server on Linux which will accept connections from the iPhone. However, unlike the other question, I want to be able to test with pre-shared keys ...
- 924
0
votes
1
answer
401
views
openswan installation
on a Linux machine with kernel 2.6.32, how to enable klips
i found that for enable klips mus enable
CONFIG_KLIPS_ALG=y
in kernel config.
but patch only available for 2.6.23- and for newer kernels, ...
- 399
2
votes
2
answers
3k
views
How do I configure a Linux VPN Client to get into a network through a Fortigate firewall?
In order to connect to my job's VPN, I have been given by the network admin:
a username
a password
a PSK
I run Ubuntu at home. I know Fortigate's VPN should be a vanilla IPSec, so OpenSwan should do ...
- 826
0
votes
1
answer
2k
views
VPN from Windows XP to OpenSwan: correct setup?
Main question is what I am doing wrong in my OpenSwan or L2TP client setup?
I am trying to create a Linux OpenSwan VPN connection from Windows XP machine, using preshared key and the builtin Windows ...
- 533