Ubuntu Networking :: OpenVPN Routed And Bridged On The Same Server?
Mar 10, 2011
I currently have one of our clients set up to use a routed VPN for their 5 laptops to connect to the server remotley. And this works brilliantly. They are about to bring on a remote office that will need a VPN connection back to the main office, so I was going to set up a bridged connection between the two sites (and possibly more sites in the future).
So my question is whats the best way to go about this? Can I have one instance of OpenVPN running with tun0 set up for a routed connection to the laptops and add a second tun (tun1) to the config that will be for the bridged connection between the sites? Or am I going to have to run multiple instances of OpenVNP, one for the routed and another for the bridged?
If routed and bridged have to run in seperate instances, will I have to add another instance for each new remote site that needs a connection? Can a bridged config connect to multiple sites, or have multiple tuns in the one config?
I am trying to setup an OpenVPN server in bridged mode (Ubuntu 10.04 Lts). The goal is for the clients to be able to reach all the servers behind Openvpn server's lan. I have followed the official OpenVPN guide for Ubuntu 10.04.
My network setup is:
Private lan: 10.90.90.0-255 255.255.255.0 Gateway: 10.90.90.1 Openvpn server ip: 10.90.90.8 Gateway public ip: 79.xxxxxxxxx
I have forward port 1195 to the Vpn server through my gateway firewall.Besides that no other firewall is running.I can connect and ping the server both from windows and ubuntu clients. The difference is that from windows I can reach the private lan but not from ubuntu clients.
I have searched google, but can't really get the hang of setting this up.Most howtos are setting up a DHCP and PXE on the same box. At the present my DHCP is done by my router and I want to set up the PXE server on my main PC.My router can re-direct traffic types based on ports (UDP or TCP) to an IP but can't do the bit about directing the pxe loader name (and I really don't want to ssh into it and start messing about there)If I redirect the port (what ever it may be, help required here) how would I go about setting up the Ubuntu PC to do the load and pass back to the PC trying to PXEboot?
Just something that struck me while working on our virtual servers today.
I have bonded 3 NICs at the host in Ubuntu Server 8.04 LTS. They are using mode 0 for Round-robin. Point is to increase the speed/performance of all the servers, but mainly the fileserver. The fileserver is a virtual server running Ubuntu Server 8.04 LTS on VMware Server 2.0.
1) I noticed the NIC in the slave OS reported link speed as 1000 and Im unable to change it as the NIC (virtual one) doesnt support it. Does this not really matter, as the NIC doesnt exist, and it will run at higher speeds anyway? Or do I have to remove the bond on the host, bridge all 3 interfaces from the host to the slave OS, and then make a bond in the slave OS?
2) While at it, does mode 0 only increase performance on data being sent from the host or does it also increase the available incoming bandwidth?
i have some problems with configuring openvpn tunnel connection to my openvpn server. I'm using static-key tcp connection. Network manager always said to me that connection could not be established. Also, when i try to run openvpn from terminal, i got some strange permissions problem:
Code:
openvpn --config config.ovpn Mon Apr 5 15:48:37 2010 OpenVPN 2.1_rc19 i486-pc-linux-gnu [SSL] [LZO2] [EPOLL] [PKCS11] built on Oct 13 2009 Mon Apr 5 15:48:37 2010 NOTE: OpenVPN 2.1 requires '--script-security 2' or higher to call user-defined scripts or executables Mon Apr 5 15:48:37 2010 /usr/sbin/openvpn-vulnkey -q moj.key
I want to configure a VPN over the Internet.I installed the 'openvpn' package, generated the key file, transfered it by a secure way to the client, and setted up the configuration file.
So, in that configuration file I input the IP addresses of the tunneled interfaces. Both IPs are static in the tunnel.
Then, I've heard somewhere that I can assign a dynamic configuration IP for the client. I do this registering a range.
Well, when I tried to change static IP to dynamic IP (changing '192.168.0.2' to '192.168.0.0/24') in the configuration file, the OpenVPN didn't work.
Obviously I don't know what I'm doing, and I really, don't believe that simply changing the IP will make it work, but I tried.
I hope I explained my problem as well.
My configuration file:
# OpenVPN Server Configuration File dev tun 0 ifconfig 192.168.0.1 192.168.0.2 cd /etc/openvpn secret key_file
In client I execute the 'openvpn' without the '--daemon' parameter.Then I want that my client uses a IP in a range (192.168.0.0/24, for example), instead of a static IP (192.168.0.2).I also thought to use a DHCP server, but I'm not sure that will work.
I have a linux server I'm intending to use as a firewall. The server has the following adapters
eth0 - Public IP (VLAN2) eth0:1 - Public IP2 (VLAN2) eth1 - 10.241.4.4 (VLAN4)
the Default gateway is my ISPs gateway. Additionally, I have the following route set: route add -net 10.0.0.0 netmask 255.0.0.0 gw 10.241.4.1
I have a server that exists on VLAN 208 at IP 10.241.209.67/21., its GW is 10.241.208.1 (first IP in /21 range)
as it is on the 10.0.0.0/8 network, traffic from the firewall is successfully routed from that server through my router to the FW and out to the Internet. The FW can ping, ssh, etc... the server and vice versa.
I want an iptables rule that will allow me to forward port 4401 on eth0:1 to 10.241.209.67:4401.
Is this possible since the IP is not on the same subnet as eth1, even though it is accessible?
I'm a bit better than a neophyte linux user. I have not made port forwards with it in the past without scripts to assist so I'm looking for not just "it is possible", but also the syntax of how to add it.
I have a linux desktop with two connections - fast eth0 and slow modem ppp0. Most of traffic (e-mail, DNS, NTP) can be routed simply by IP/mask. But how about http and p2p (torrents, DC++)? Routing by IP is unacceptable, because there is very huge amount of routing rules. I need route http packets (80 port) through ppp0, p2p through eth0 (10000:65535 ports). I've found that splitting traffic by port is possible with marking packets for different gateways. For begin I cleared all tables and bringed up connections.
I am building a router and I wonder if I have some rules like this and /proc/sys/net/ipv4/conf/all/accept_source_route is 0 will it work.
Code: echo 1000 TEST >> /etc/iproute2/rt_tables iptables -A PREROUTING -s 192.168.2.0/24 -t mangle -j MARK --set-mark 1 ip rule add fwmark 1 table TEST ip route add default via 192.168.3.5 dev eth2 table TEST
I am not quite sure is it source routed packages at all. And also even if it works with my router will next firewall drop such packages. I have mentioned before that some things like:
Code: ip route add default via 192.168.3.5 dev eth2 src 192.168.2.0/24 do not work
I have three machines say A B and C. I want to make machine B as a router for A and C, so that the ping packets from C to A should be going via B. I have directly connected two interfaces(eth4) of A and B and similarly two interfaces(eth5) of B and C. I have even set up a route between B and C. 1. But I am not able to set a route between B and A.2. If I ping A from eth4 of B(viceversa) it works. When I ping B from eth5 of C it work but not the viceversa.3. Also, if I ping from C to A, B receives the packets, but not A.
New ubuntu desktop user here. I've been working with Ubuntu servers for over 3 yrs, using Windows as clients. I have OpenVPN running on an ubuntu 10.04 server, and it has worked well with Windows OpenVPN clients connecting. I took those same settings and applied them to this new install of Ubuntu 10.04 Desktop, and now openvpn seems to be failing when we get to the routes (I wrestled with the network-manager "secrets" issue for hours, but that works now).
I performed the following: sudo openvpn --config fogbank-ny1.ovpn --all is well, we're connecting/yay then *screech* FAIL--
Code: Sun Jul 18 07:17:14 2010 PUSH: Received control message: 'PUSH_REPLY,route 10.8.0.0 255.255.255.0,redirect-gateway def1,dhcp-option DNS 10.8.0.1,route 10.8.0.0 255.255.255.0,topology net30,ping 30,ping-restart 600,ifconfig 10.8.0.10 10.8.0.9' Sun Jul 18 07:17:14 2010 OPTIONS IMPORT: timers and/or timeouts modified Sun Jul 18 07:17:14 2010 OPTIONS IMPORT: --ifconfig/up options modified Sun Jul 18 07:17:14 2010 OPTIONS IMPORT: route options modified Sun Jul 18 07:17:14 2010 OPTIONS IMPORT: --ip-win32 and/or --dhcp-option options modified Sun Jul 18 07:17:14 2010 ROUTE default_gateway=192.168.10.1 Sun Jul 18 07:17:14 2010 TUN/TAP device tun0 opened Sun Jul 18 07:17:14 2010 TUN/TAP TX queue length set to 100 Sun Jul 18 07:17:14 2010 /sbin/ifconfig tun0 10.8.0.10 pointopoint 10.8.0.9 mtu 1500 Sun Jul 18 07:17:14 2010 /sbin/route add -net <mypublicip> netmask 255.255.255.255 gw 192.168.10.1 Sun Jul 18 07:17:14 2010 /sbin/route add -net 0.0.0.0 netmask 128.0.0.0 gw 10.8.0.9 Sun Jul 18 07:17:14 2010 /sbin/route add -net 128.0.0.0 netmask 128.0.0.0 gw 10.8.0.9 Sun Jul 18 07:17:14 2010 /sbin/route add -net 10.8.0.0 netmask 255.255.255.0 gw 10.8.0.9 Sun Jul 18 07:17:14 2010 /sbin/route add -net 10.8.0.0 netmask 255.255.255.0 gw 10.8.0.9 SIOCADDRT: File exists Sun Jul 18 07:17:14 2010 ERROR: Linux route add command failed: external program exited with error status: 7 Sun Jul 18 07:17:14 2010 Initialization Sequence Completed
I am using the suggested openvpn routes. If I connect from Windows (actually the .ovpn file is taken directly from the working windows machine).. all is well, routes work fine all traffic is routed thru the VPN -- same way it's worked for over a yar. I assume that this is what is causing networkmanager to fail as well. those logs indicate that it has connected to the vpn, but is probably stopping when it gets to routes.
I have an Ubuntu server that is currently running Ubuntu 8.10. I was thinking of making it a VPN server for my iPhone and also for my laptop whenever I'm outside and need to access internet over insecure wireless networks. Now that part should be easy I found several guides on how to configure OpenVPN server, as well as enabling clients on iPhone, and OSX.
However, the things is that my server is currently a OpenVPN client also, I have a paid tunnel set up to bypass my ISP blocking incoming traffic on various ports. Is it possible to keep this setting but still enabling a VPN server? Essentially causing traffic from my external device to go in through my tunnel to the VPN server, and then out through the external VPN provider.
I configured succesfully openvpn server, but the service won't start at boot !I thought openvpn automatically starts al the *.conf files in the /etc/openvpn folder ?on my personal laptop the service automatically starts all the .conf files in the folder. But on my server with server.conf file it won't start at boot. I have to start the service as root
In addition to 2 "desktop" machines, I recently set up an Ubuntu Server with Apache2, but when I try to access my www.homepage from a machine locally connected to the same router (via both wired & wireless interfaces), I am directed to the Login page of the router, not to the www.homepage. Yet, when I access the www.homepage from elsewhere, my www.homepage is accessible.
I can browse to my www.homepage by entering the local IP address into browsers on both local machines, so I know the machines are talking to each other. Just not letting me get in via normal internet browsing channels.
Server: Ubuntu 11.04 Webserver: Apache2 Router: D-Link DIR-615 IP Address of: 192.168.0.110 (reserved on router, static on server)
I have (seemingly regretfully) finally upgraded my Fedora Core 7 linux machine that has served me so well for the past decade. One of the final pieces to put in place was my Openvpn config (which was running flawlessly on my FC7) which I cannot get to work.
Here are my steps.
1. Disabled SELinux
2. Added the following entry in my iptables: (although I've stopped iptables to help troubleshoot) -A INPUT -i tap0 -j ACCEPT -A INPUT -i br0 -j ACCEPT -A FORWARD -i br0 -j ACCEPT
3. Yum installed openvpn and bridge-utils (btw I'm using bridging)
4. Configured my bridge-start script as such: #!/bin/bash # Set up Ethernet bridge on Linux # Requires: bridge-utils # Define Bridge Interface br="br0" .....
5. Configured my openvpn server conf as such: proto tcp-server port 5990 dev tap0 .....
When I execute my bridge-start script it creates the br0 and tap0 then all connectivity vanishes (I can only ping my gateway 10.0.0.50) - internet and any other addresses time out.
Running Linux Fedora 10 on an Intel Core 2 Duo PC. Runs great. We are trying establish VPN between a client and server on the same LAN. The network is a standard fast ethernet, run great. We are trying to install OpenVPN server, but having a little difficulty. Key and certificate builds seem to execute without a problem. But when we try to start the service we get [FAILED]. I've attached a copy of our procedure.
I've been the las 4 days setting up my first VPN (OpenVPN bridged). The server is up and running OK but when I try to connect I've got this message in the client log.
Quote:
TLS Error: TLS key negotiation failed to occur within 60 seconds (check your network connectivity) TLS Error: TLS handshake failed
I'm attempting to set up a VPN server on my box using the nifty HowTo posted here: [URL]
My setup is as follows:wifi0 --> Internet; managed entirely via nm-applet (NetworkManager) Where I'm running into trouble is in the creation of a bridge interface (br0) to bridge future VPN clients to my local network.
The guide(s) say that I need to screw around in /etc/network/interfaces to setup br0 and [eth0/wifi0] accordingly. The problem is that when I specify a configuration of any sort for wifi0 (my only choice for a network uplink), it disables nm and I am unable to configure my wifi in any sort of sane way after reboot... Further info: this "server" doesn't move, and always always connects to the same wifi hotspot that is also nailed in place.
This was working and stable on f-10 and f-11. Fresh f-12 install including openvpn, Copied /etc/openvpn/* to new system as root from working f-11 syatem. /etc/init.d/openvpn start (and stop) works as advertised HOWEVER when set to start at boot using chkconfig or Services Configuration program, openvpn does not start. I must manually start it every time. When started, it does work without error messages in the log.
I tried removing the NetworkManager-vpn module with no effect. Thought it could somehow be overriding the auto startup of openvpn at boot.
I'm setting up a VPN with openVPN on a debian lenny server. I successfully installed it in the server, then created the certificates and both client (winXP) and server config files. For the client I use openVPN gui. I tested the tunnel and everything went just fine. I even can ping the openVPN server from the XP client.But thats all. I can't ping any machine behind the openvpn server.Some facts that you may find useful to help me with this issue are:
- The openVPN server is not the default gateway of the LAN. The dg is a pfsense server - I dont have iptables enabled (policy of all chains are ACCEPT). - I have configured ip forwarding (echo "1" >/proc/sys/net/ipv4/ip_forward)
[code]....
I have checked and all seems to be OK. I think that the problem is connected with routing the traffic from the vpn to my LAN but I don't know how to do that (besides the push route line in the server.conf).
I have a openvpn server configured and users are using from remote location. I got some errors in the /var/log/messages file as:PHP Code:
Dec 18 16:09:37system openvpn[7221]: x.x.x.x:58983 TLS Error: TLS key negotiation failed to occur within 60 seconds (check your network connectivity) Dec 18 16:09:37 system openvpn[7221]: x.x.x.x:58983 TLS Error: TLS handshake fai
I need some advice on setting up VPN. The situation is as follows: Server => Centos 5.5 Clients => Fedora, Ubuntu, Win XP, Win 7 (and possibly mac) The flow could be as follows Code: Client=>10.x.x.x=========>10.x.x.1<=VPN Server=>192.168.x.1<=========192.168.x.x<=Server in LAN
A bit of explanation of the above. I would like to allow any client (be it any Linux version or Windows), to connect to the VPN server, obtain an IP Address and then function as if it is in the LAN and be able to access all the servers in the LAN. So the connection between an external client and the VPN server will be through the 10.x.x.x ip range and the server and the internal machines will be through the range 192.168.x.x. After going through the internet, I have decided to deploy OpenVPN client/server, with bridged tap interface in the server and the client.
I am trying to setup a network bridged Server on Centos 5 like belows,
Broadband Router (NAT mode) ---> Bridged server (with t Proxy)--> Client PC .
after installing and configuring bridge, client can browse. But, i want to make this server working as a transparent proxy.But, my bridged proxy is not working. i need to use iptables command to make it properly.
how to configure a bridged connection in where we are required to enter username and password.I am currently using PPOE type connection of my modem(A Nokia siemens ADSL modem).
