Ubuntu Networking :: OpenVPN Bridge Mode Firewall?

Nov 7, 2010

I have OpenVPN running on my Ubuntu Server just fine. I can connect over the Internet and access all my resources on the LAN via bridged mode perfectly. My server only has one LAN card and sits behind my router, which means it has a private IP address of 10.1.1.2....Which brings me to my question. I want to open up access to my friends via OpenVPN, but I don't want them to be able to access other machines on my LAN (e.g. 10.1.1.20). However, I do want them to be able to talk to each other and pass broadcasts (old LAN games), as well as my laptop (let's say 10.1.1.7).I've tried using iptables to block traffic to the LAN (such as .20), to no avail. I've been reading up and it seems as though iptables won't even filter the traffic, as it's passed at a lower layer. Is this true? If so, what do you recommend I do in order to prevent my buddies from accessing the rest of my LAN while siumultaneously allowing broadcasts pass for some very old Windows LAN games (we're talking Windows 9.

View 2 Replies


ADVERTISEMENT

General :: Setting Up OpenVPN On Debian In Bridge Mode

May 12, 2011

I'm trying to setup openVPN on debian, well this worked. But every client will get the same ip (172.17.0.6 - local it is). how to set my server in bridge mode. I've read about: server-bridge LOCALIP 255.255.0.0 172.17.1.20 172.17.1.100

BUT, my server has no ipv4 address, but only ipv6: 2001:41d0:2:b2d6::542a:74a so I am not sure how I can do this.

View 1 Replies View Related

Ubuntu Networking :: OpenVPN Bridge - Cannot Get Faster Connection

Dec 5, 2010

I have an openvpn bridge up and running (ubuntu to ubuntu, both in vmware fusion machines on macs). My problem is that I cannot get a connection faster than ~9mbps even though 20+mbps is available. I've been troubleshooting for a while and have tried many fixes. I just now did ethtool tap0 and I think maybe I found it. It says the link is 10mbps. I tried to change it with:
sudo ethtool -s tap0 speed 100
but it says ethtool cant change speed on tap0. How can i define the link speed of tap0?

View 3 Replies View Related

Ubuntu Networking :: OpenVPN Bridge Network Won't Work After Reboot / Sort It?

Oct 27, 2010

I followed this tutorial => https://help.ubuntu.com/community/OpenVPN
I'm working on ubuntu 10.10 OS

So everything is ok when i start the tutorial with my interface on code...

The only way I can make it work again is by setting the interfaces back to

auto lo
iface lo inet loopback

>> then reboot
and after that put back the br0 settings in the interfaces en restart the network.

View 4 Replies View Related

Networking :: Set 2 Network Cards In Bridge Mode?

Apr 7, 2010

I have installed CentOs 5.4 for Snort sensor , on the location where i intend to place the Snort sensor to listen for internal firewall leg (LAN) the switch doesn't support port mirror so i would like to create with 2 nic's bridge and pass trough the firewall internal leg my question how do i set such configuration.

View 2 Replies View Related

Ubuntu Networking :: How To Bridge A Wlan Card In Managed Mode

Feb 3, 2011

I have 2 wlan cards. wlan0 and wlan1. wlan0 is in AP mode(Master mode) using hostap. wlan1 is connected to another wireless network and is in Managed mode. Now I want to make a bridge between wlan0 and wlan1. I do it like that:

ifconfig wlan0 0.0.0.0
ifconfig wlan1 0.0.0.0
brctl addbr mybridge
brctl addif mybridge wlan1
can't add wlan1 to bridge mybridge: Operation not supported

It doesnt work, because wlan1 is in managed mode. But Windows 7 can bridge 2 Wlan cards when one is AP and another one is STA. How to do it in Linux?

View 4 Replies View Related

Ubuntu Networking :: Configure My Box To Connect To A Modem In Bridge Mode?

Jun 27, 2011

How would I configure my box to connect to a modem in bridge mode?

I have a server at home that im migrating over to be the default-gateway/router. I have everything else setup (dns,dhcp etc) now just need the ppoe part, or so i beleive?

I have two interfaces. eth0 (lan) and eth1 ready to connect to the modem.
The modem is in bridge mode ready to go.
What is my next step? Are there any good guides, I didn't find any.

View 5 Replies View Related

Networking :: Setup Bridge Mode For Windows Server?

Mar 3, 2010

setup linux in bridg mode for my windows server ?

my both linux and windows has 2 network cards each.

basicaly it is vLan cards, each server has 2 network cards. one to main switch and one to local IP.

data will be going like below:

internet ----------------> eth0 --> linux --> eth1 ----------------> Windows.

i have vLans on both servers. And i need cross connection setup. And use linux in bridg mode / cross connection .

actualy i want to use Iptable rules to filter bad packets and forward good packets to windows. i have scripts how to forward packets to windows. but the problem is i dont know how to setup both servers in this topology. and how to make linux as bridge.

All it should be in transparent mode. Not in NAT mode.

View 14 Replies View Related

Fedora Networking :: OpenVPN Timeout - Error From NetworkManager - Connect To My Router/firewall

Mar 13, 2011

I'm getting a timeout error from NetworkManager when attempting to connect to my router/firewall.

Excerpt from /var/log/messages attached.

View 1 Replies View Related

Ubuntu :: OpenVPN Setup - Bridge Ports (From Work To Home)

Sep 9, 2010

I'm following this guide [URL]. I am trying to use a bridge to vpn from work to home.

/etc/network/interfaces
# The loopback network interface
auto lo
iface lo inet loopback

# The primary network interface
auto br0
iface br0 inet dhcp
bridge_ports eth0

iface eth0 inet manual
up ifconfig $IFACE 0.0.0.0 up
up ip link set $IFACE promisc on
down ip link set $IFACE promisc off
down ifconfig $IFACE down

I am forced to use dhcp because of my router. (although it is a static lease) I think this is where I am hung up. Everything else seems to be working properly though. I have a windows client connecting but is limited to the server serving out openvpn. (192.168.1.21) In other words it is not functioning as a bridged vpn service.

ifconfig
openvpn server.conf
local 192.168.1.21
port 1199
proto udp
dev tap0
up "/etc/openvpn/up.sh br0"
down "/etc/openvpn/down.sh br0"
ca ca.crt
cert server.crt
key server.key # This file should be kept secret
dh dh1024.pem
ifconfig-pool-persist ipp.txt
server-bridge 192.168.1.21 255.255.255.0 192.168.1.100 192.168.1.200
keepalive 10 120
tls-auth ta.key 0 # This file is secret
comp-lzo
user nobody
group nogroup
persist-key
persist-tun
status openvpn-status.log
verb 3

View 2 Replies View Related

Ubuntu Servers :: Setting Up A Bridge For OpenVPN / Tunnel All The Traffic Through The VPS?

Feb 3, 2011

I have an Ubuntu VPS running 10.10 x86_64

This is what is in my /etc/network/interfaces right now.

Code:
auto eth0
iface eth0 inet static
address 67.202.x.x
gateway 67.202.x.1
netmask 255.255.255.0
auto lo
iface lo inet loopback
My server.conf
code....

I can get the VPN server running and everything connects fine from the client. I just don't know how to tunnel all the traffic through the VPS because it involves making the bridge which I'm having trouble with. What exactly am I supposed to put in /etc/network/interfaces?

View 1 Replies View Related

Software :: Execute Scripts To Setup Bridge After Openvpn Restart

Sep 10, 2010

I need to execute scripts to setup the bridge after openvpn is restart. Where do I put the scripts? How do I get openvpn to execute them?

View 2 Replies View Related

Networking :: Setup A Bridge Using Bridge-utils Within /etc/network/interfaces?

Dec 8, 2008

I want to set up a bridge using bridge-utils within /etc/network/interfaces like is shown here in this guide: [URL] The problem is that, at the same time, I want eth0 to have a specific static IP address. Right now I have a configuration for eth0. This guide tells me that I should not configure eth0 outside of the br0 configuration.

View 3 Replies View Related

OpenSUSE Network :: Allow Openvpn Service In Firewall?

Jul 13, 2010

I can't get my openvpn work if the firewall is on , and I also don't see any option to allow openvpn service in firewall allow service.

View 1 Replies View Related

Server :: Make Openvpn Working Without Nating In Firewall?

Jul 26, 2011

I had installed openvpn in linux machine (public ip) remote pc.. and installed client openvpn in windows xp machine (local network )remote pc... ...how can i accesss openvpn server to access local lan network without performing NATING in firewall.

View 2 Replies View Related

Ubuntu Networking :: Network-manager-openvpn And Static-key OpenVPN Connection In 9.10

Apr 5, 2010

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

[code]....

View 1 Replies View Related

Security :: Public Facing OpenVPN - Open Any Ports On The Router / Firewall

Feb 14, 2011

Within the documentation of example OpenVPN setups there is a setup that shows an OpenVPN Server with two network interfaces. One interfaces is plugged into the public internet network and the second interface is plugged into the private network.

Normally I assume that it would be best to place the OpenVPN system inside the network behind the router and firewall and open only the ports needed on the router to allow access to the OpenVPN system. All other router ports would be closed. This is the first example they show. To see what I am talking about see page(s) 6-7 here -> [URL]

If one were to use the two interface public facing setup, when would that setup best be justified? I guess if you didn't want to open any ports on the router/firewall then this could be justified but then you have to lock down this public system individually instead of having it protected by the network firewall.

View 1 Replies View Related

Debian :: Router Or Bridge Mode And Pppoeconf?

Sep 24, 2010

I wonder what is your opinion about the best method for using an ADSL modem. Router or bridge? I did read some articles that say "that the bridge mode gives you more stability and has higher speed". Is that true?

Furthermore, you suggest any alternative to "pppoeconf"? I've been getting this errors ( in the plog), related to "PAD packet loss" and also errors in "PPPOE Discovery", even when I am connected. When this things starts to show up on the log, my connection "pauses" for some seconds. I do not feel very safe with this program.

View 3 Replies View Related

Debian :: Switch The Kvm Network Using Bridge Mode?

Dec 20, 2008

I've successfully install kvm with private network (nat) up running. I want to switch the kvm network using bridge mode (or host-interface), but do not success. env: nic iwl4965/ kernel 2.6.27.8/ debian etch upgrade to lenny/ kvm 0.9.1/ hardware hp 6910p The doc I follow up is at [URL] The way how i set it up is to modify /etc/network/interfaces by adding following section to enable br0

Code:

allow-hotplug br0
iface br0 inet dhcp
bridge_ports wlan0
bridge_fd 9

[code]....

However, the problem is the guest os, which starts with -hda k1.img, can not access to the internet. Is there any step I miss? or it is because wireless does not support bridge (I've heard doc says that wireless does not support wireless bridge)?

View 4 Replies View Related

Server :: Squid Transperant Proxy In Bridge Mode?

Sep 3, 2010

I configured squid in transperant proxy and it's working fine.Now i tried it in bridge mode for that i did setup for bridge mode and it's working fine.But i can not get any http request in squid access log.i can see traffic from my bridge. tcpdump -i br0

configure bridge:
ifconfig eth0 0.0.0.0
ifconfig eth1 0.0.0.0
brctl addbr br0
brctl addif br0 eth0
brctl addif br0 eth1

[Code]...

View 1 Replies View Related

Hardware :: WiFi Router Netcomm NB504 -Configuring For Bridge Mode?

Jan 4, 2010

I'm interested in configuring two Netcomm NB504 WiFi routers to work in a Bridge configuration. ie. Local PCs ---> Router <----//----> Router <--- local PCs

The NB504 router doesn't appear to have a native "bridge" mode. However, it does run Linux according to the documentation. I'm interested to hear from anyone who has actually got two of these routers to work in a bridge configuration. I'm not interested in general theoretical comments - only solid advice. I am also not interested in using other hardware for this exercise - I have two of these devices available for use in this project.

View 4 Replies View Related

CentOS 5 Server :: Implementing Transparent Tproxy Cache In Bridge Mode

Jun 9, 2009

any one are implementing Transparent Cache in bridge mode. after googling i found article but its not working for me. any one have done this before ? [URL]

View 4 Replies View Related

Ubuntu Servers :: Setup An OpenVPN Server In Bridged Mode?

Jan 17, 2011

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.

View 2 Replies View Related

Networking :: Setup Firewall / Sys1 Is Not Connected To Firewall For Testing Purpose?

May 18, 2010

I am learning to setup firewall in my home for that i have selected four system(sys1,sys2....sys4) for testing .I have configured sys2 to act as a firewall with two NIC. sys3 and sys4 are inside the firewall . sys1 is not connected to firewall for testing purpose.

the IP assignments are follows :

sys1 : ( fedora, not connected to firewall i am thinking, But i am not sure )

IP : 192.168.2.1 ,
gateway : blank
dns1 : blank
dns2 : blank

sys2 firewall ,IPTABLES )
code....

what happened is that sys1(not connected to firewall) can ssh to sys4(connected,inside firewall),since the rules are written not to ssh form sys1 to sys4..

then I came to know whatever the request I give, It directly goes as sys1 --> sys4. Not as sys1-----> sys2(firewall)---> sys4 .and the firewall is not filtering and processing anything for both inbound and outbound (i think it's my mistake some where). the requests are directly going inside without firewall.

View 3 Replies View Related

OpenSUSE Wireless :: WiFi Printer Mode Off In Yast With Firewall

May 5, 2011

I have WiFi printer, HP DeskJet F4500. If suse firewall is on, yast doesn't see that printer. If I turn firewall off, Yast sees printer and install it just fine. Problem is, that when i start firawall again, yast denies whole printer and turn it off mode in Yast. What firewall rule i have to make to get this work?

View 2 Replies View Related

Ubuntu Networking :: High Throuput Mode Aka 11n Aka 801.11n Mode On Airlink101 AWLL6075?

Sep 21, 2010

I ordered this USB 802.11n dongle for about $10 and am having problems.I found a firmware related bug (Bug #595455) that keeps it from working out of the box and got around that. I put the right firmware file in the right place and CAN CONNECT TO B or G Access Points.hen I put my AP in N-Only mode, I can see the network, but cannot associate. With the AP in mixed mode I can Associate using G.The most interesting thing I found was something that had very
few google hits (like 4). In the dmesg output after associating I see the message:

Successfully associated, ht not enabled(0, 1)The most interesting thing about this is the (0, 1) at the end.I don't know what that means but it seems like a clue as to what the problem is.This device uses the realtek chipset 8191S, there are conflicting reports on this, but all the reported possibilities seem to use the same driver from realtek (rtl8712_8188_8191_8192SU_usb_linux_v2.6.0006.2010 0625).Here is some random info:

Dmesg output:
[85082.620027] usb 1-3: new high speed USB device using ehci_hcd and address 6
[85082.754586] usb 1-3: configuration #1 chosen from 1 choice
[85082.755456] ==>ep_num:4, in_ep_num:1, out_ep_num:3[code]........

View 1 Replies View Related

Fedora :: Openvpn Certificate \ Installed Openvpn And Config It For A Tunnel?

Aug 9, 2010

i have installed openvpn and config it for a tunnel. my server.conf and client,conf is as follow:

server.conf
port 1194
proto udp

[code]...

View 1 Replies View Related

Server :: OpenVPN Range Address / When Change Static IP To Dynamic IP In Config File OpenVPN Didn't Work?

Feb 13, 2010

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.

View 6 Replies View Related

Ubuntu Networking :: How To Bridge A Connection

Jul 19, 2010

I have a Gateway laptop running ubuntu 10.04, and just now have a compaq desktop running windows 7, my laptop has wireless internet connection, it's the only way that i can get it in my room. my desktop has only ethernet plugin. My question is, If i plug my laptop up to my desktop using an ethernet cable, can i bridge that connection to get internet from my laptop(using the wireless) to my desktop(using the cable)

View 1 Replies View Related

Ubuntu Networking :: Getting A Bridge Constructed?

Dec 13, 2010

My first, followed a couple of Ubuntu how tos and used LinuxFoundation bridge doc. I still have managed to mess it up! Here's the simple test network, First -- ALL hardware is fine, I have verified everything, to the last cable. In fact this is being written from the test network without the bridge running.

OK, I have a firewall that has dhcp server on board, I have a client workstation with dhcp enabled network card(eth1) (the one I current typing from). There are 2 switches between the firewall and the workstation (eliminate xover issues when testing) That's it. All is well. Now I want to place a computer in line between the firewall and the workstation. It is a 10.04 server install, no gui, minimal install. It has 3 network cards, One of these ports was used to set up the server. It is set up dhcp and it works just fine, I spent all kinds of time ssh'ing into the box, so the dhcp client is good to go.

I disconnected the cable to that interface and ran a cable from the firewall's switch to one free port(eth0) and a cable from the workstation switch to the other free port(eth2). From the console I do ifconfig -a and there are all 3 eth's, 0,1, and 2 I then open /etc/network/interfaces and to lo and eth1 I add this:

[Code]...

View 1 Replies View Related







Copyrights 2005-15 www.BigResource.com, All rights reserved