Fedora Networking :: Perform A VPN Lan To Lan IPSEC Connection?
Jul 21, 2009
I'm trying to perform a VPN lan to lan IPSEC connection. By my side, I have a server with 2 IP's, i.j.k.l (destined to act as a VPN gateway) and i.j.k.m (the server). I am a newbie. I don't know if this configuration is normal, but it's forced by our partner.
My configuration is:
OS: Fedora release 7 (Moonshine)
OpenSWAN version: Linux Openswan U2.4.7/K2.6.23.17-88.fc7 (netkey)
ipsec.conf
# /etc/ipsec.conf - Openswan IPsec configuration file
#
# Manual: ipsec.conf.5
[Code]...
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Jun 4, 2009
i would like to establish a VPN connection which can hold either 'two' hosts..and secondly if that's done i would like to go for more number of users..Can i do it using IPSec services??if yes then how?
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Feb 17, 2010
I am getting this error when I try to bring up IPSec Tunnel.Starting connection with command /usr/sbin/ipsec auto --up 'paycode-to-vivacom' ..
104 "paycode-to-vivacom" #7: STATE_MAIN_I1: initiate
003 "paycode-to-vivacom" #7: received Vendor ID payload [draft-ietf-ipsec-nat-t-ike-02_n] method set to=106
003 "paycode-to-vivacom" #7: ignoring Vendor ID payload [FRAGMENTATION c0000000]
[code]....
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Aug 24, 2010
I have an IPsec VPN between 2 Ubuntu 10.04.1 Boxes which is working perfectly. However I cannot get any traffic to route down the VPN link.Interestingly, when checking the routing table, there isn't even a route list for the remote network. This is the same on both sides. Also there isn't an ipsec0 interface listed either.However, when a the command "sudo service ipsec status" is ran, it definately shows the tunnel is up and connected.
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Sep 9, 2010
I install openswan on rhel6 and when i execute the command "service ipsec start "
it say:
/usr/libexec/ipsec/addconn Non-fips mode set in /proc/sys/crypto/fips_enabled
/usr/libexec/ipsec/addconn Non-fips mode set in /proc/sys/crypto/fips_enabled
ipsec_setup: Openswan IPsec apparently already active, start aborted
[Code].....
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Feb 12, 2011
I've been using IPv6 on my local network and through a Hurricane Electric IPv6 tunnel. I've heard that one of the built in features of IPv6 is encryption, both scrambling the data and authenticating where the traffic came from. I've done some searching and heard of SWAN and Racoon, but some of the stuff I found is old and I would like to know what the easiest/best way to set up IPSEC for IPv6 is.
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Jun 4, 2010
I had configured IPSEC/L2Tp on my Centos 5.4 gateway machine .For testing i had disabled firewall and Ipsec is working fine.I am able to connect from client etc...Now i want to allow Ipsec and l2tp throught Firewall.here is my Current Working Firewall.Only Openvpn is allowed and is Redirected.
eth0=XXXSTATICIPXXX
eth1=192.168.1.81
OpenVpn IP Range = 172.24.0.16/4
Ipsec Ip Range = 192.168.1.0/24
[Code].....
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Jun 22, 2011
While I successfully configured an IPsec-VPN (I use a similar tho modified setup like this:[URL].. I am now stuck on the next steps. While I can connect to everything I want, I need to configure "access-groups" and/or "users".
The scenario is similar to this: Lets say Host A, B and C allow SSH-Connections and some weird non-standard UDP-Connection from Host-VPN, and are also accessible on other ports with public IP's (like http).
I now want to limit, that an admin-user has access to all of them, while trainee-admin only can access everything on Host B and C, and CEO only can connect via telnet to Host C - and all users can be roadwarriors
(I made this example up to give you an idea what i'm trying to do - hope it makes sense). Now my question is, if someone can point me towards a direction, as I'm quite clueless at the current moment as to what to try. I know that commercial IPsec-Implementations can do this, but can OpenSWAN/... give me something similar?
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Feb 27, 2011
I have a Ubuntu 10.10 box which i've developed an IPTables Firewall script and is forwarding my ports correctly. This service also runs Openswan VPN Server with 2 VPN's, which is also working well.
I have come across a small snag with excluding the multiple VPN subnets I have from the NAT on this box.
I have the line in my configuration file:
-A POSTROUTING -o eth1 -s 10.172.1.0/24 -d ! 192.168.5.0/24 -j MASQUERADE
Which when added to IPTables does make the VPN come to life. But I can't seem to get it to add the second subnet. Unfortunately, I can't do a blanket exclusion such as 192.168.0.0/16 because the second VPN is on a Class B subnet address which I cannot change.
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Aug 18, 2011
Connecting two networks with ipsec on this manual [URL] The two networks are connected, everything works, the question is as follows: For a gateway to multiple subnets, I have access to only one subnet is listed in / etc/sysconfig/network-scripts/ifcfg-ipsec0 DSTNET = 192.168.2.0/24. How do I get access to all the subnets?
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Apr 29, 2010
Is there any possibility to transport one or two VLANs through a VPN (IPSEC) link on Linux
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Jan 19, 2010
i need to build an ipsec vpn between a linux debian server and a zyxel prestige, The debian server got 2 ethernets connection one for the internal network and the other one is public with a public ip adress.I need to know what i need for the build the tunnel, could you please let me know what i need? Let me explain i have only to configure openswan or i have to configure the iptables or somethings else too? I found this one do you think this would be work for me? [URL]..Is debian a right distro or should i try someone else?
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Dec 17, 2010
I've no experience with IPSec. I've used many times OpenVPN (with static key or certificates x509).
Could anyone suggest me a good tutorial in order to learn IPSec vpn with Linux?
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Apr 3, 2010
I've searched through google, and all I can find are instructions on how to set up a L2TP/IPSec VPN that works with macs and iPhones. I'm NOT trying to set up an L2TP/IPSec VPN. I'm trying to set up a pure-ipsec vpn.
The iPhone IPSec client is a built-in cisco client, I believe. I'm staying away from L2TP and PPTP because I need multicast packets to go through. *edit: wow, i just noticed that the title says "8.10 LTS". Oops! I obviously mean "8.04 LTS". Gah, the lack of sleep got to me.
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Nov 16, 2010
I just got vpnc setup to work with my VPN at work and now I am trying to figure out how to limit the traffic that is routed through the VPN while I'm connected to it. I only want traffic going to the local domain to be routed through the VPN.This is what my vpnc config file looks like:
Code:
IPSec gateway publicdomain.example.com
IPSec ID XXXX
[code]....
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Jun 28, 2011
My client is on Ubuntu Lucid 10.04, I installed ipsec-tools and racoon from the repositories. The gateway is installed on a CentOS machine. I've configured everything to get a working roadwarrior configuration with authentication_method hybrid_rsa client and server. It's working in aggressive mode, but in main mode I can't get it working. I delivered new CA and certificates several times but I'm still stuck.
It seems that it comes from my client not supporting the certificate sent by the server. The client contains a copy of the CA, whereas server has a private key and a certificate signed by the CA.
[Code]...
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Jun 25, 2011
I have been trying to setup IPSEC encryption between two linux boxes. I have a server application which runs on Linux Box A and a client application which runs on Linux Box B. The client sends the data to server. I have captured wireshark logs at both server and client end. In the wireshark logs I can see that the Box B send ESP packets to the Box A.
But the server Application running at Box A is is not able to get any packets. If I turn the policy off at Box B, Box B sends normal UDP data packets to Box A, but still the Server Application running at box A doesn't get any packets.( Expected behavior since policy at Box A enforces that all packets coming from Box B should be encrypted.)
If I turn the policy off at Box A and Box B both, the server application receives the unencrypted data which is also expected behavior. But when the policy is turned on at both the boxes the encrypted packets reach the Box A but are not delivered to the server application. If anyone has faced such issue please help me to debug this issue. I have attached the ifconfig and policy settings at Box A and Box B for your reference.
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Jun 21, 2009
I have installed Fedora 11 recently. I want to share my Internet connection.
I have e LAN connection eth0 which is connected to internet.
I have a Wireless connection wlan0.
I want to share my internet connection with wireless connection.
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Aug 31, 2009
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Sep 19, 2009
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And that i7 appears to the OS as 8 processors, 0 thru 7. But from a performance perspective, the 8 processors are not identical, because each core has 1 execution engine plus the ability to store the state of 2 threads. This is, as far as I understand it, the essence of Intel's Hyperthreading. So each execution engine can quickly switch between 2 threads without bothering the OS, but only one thread at a time actually executes.
Suppose, for example, all processors are idle and the OS assigns one thread to processor 0, then has a second thread to assign. Since all free processors are considered identical, the OS could assign the second thread to any free processor, say 1. The result would be that both threads are competing for the same execution engine, while the other 3 cores remain idle. Is my understanding of SMP correct?
If so, does linux SMP take full advantage of Intel Hyperthreading (which existed also in earlier Intel processors)? That is, does linux SMP assign threads in such a way that it attempts to choose an idle execution engine? I don't know what algorithm SMP actually uses to choose the processor. For example, it could be the first free processor, or any free processor chosen at random.How about Windows? How does it handle the situation?
Edit: I have also posted this question in linuxforums and phoronix forums. I hope this doesn't count as cross-posting, since those forums are not on this site and they have different readership. If it is indeed cross-posting, please let me know and I will avoid doing it in future.
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Nov 25, 2010
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Aug 27, 2011
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Jan 17, 2009
i am using red hat5 n i want to create X.509 certificates for ipsec vpn help me in creating certificates, not able 2 create certificates guide me ehere is the location for certificates.
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Apr 10, 2011
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Jan 16, 2011
I just want to use Internet Connection Sharing (ICS) to connect to the internet. I have done a massive amount of troubleshooting, but some of it seems to contradict itself, and the only two things that I know for sure are that it used to work, and that my Ethernet cable is not the problem. When I use Terminal utilities like ifup and dhclient it seems that it can not determine IP information, but when I try to put it in manually, the "Apply" button grays out right after I finish typing it in. When I try to connect normally, in KDE or GNOME, the icon acts like it's connecting, then instead of having the connected icon, I receive a notification that "the network has been disconnected", and it goes back to the disconnected icon.
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Mar 6, 2010
I have installed fedora 12 recently. after installation i tried to connect to the internet using BSNL broadband connection. I filled in the details such as IP, Netmask, Gateway and even DNS servers. In the services also I ensured that the network manager services is on. However even though my computer cannot connect to the internet. I then tried the ping test of the modem from the address 192.168.1.1 and found that the ping test is successful. Then i tried the network administrator and there I noticed something unusual.
There are two options in the devices eth0 and eth1 thats ok but the unusual; thing is that the Activate (green button), Deactivate (red button) and even the delete buttons are in the background and I cannot select them. Isthis the problem for the network connectivity.
[Code]....
I then tried the ping test of the modem from the address 192.168.1.1 and found that the ping test is successful. Then i tried the network administrator and there I noticed something unusual. There are two options in the devices eth0 and eth1 thats ok but the unusual; thing is that the Activate (green button), Deactivate (red button) and even the delete buttons are in the background and I cannot select them. Isthis the problem for the network connectivity.
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Aug 15, 2010
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If I right-click on the tray icon and pick eth0 it comes right back.
Some relevant lines from /var/log/messages:
Code:
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Mar 29, 2010
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