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2
votes
0answers
141 views

Ubuntu router with 2 NICs, traffic stops and I don't understand why

I'm currently running a Beaglebone black with bone-ubuntu-14.04-console-armhf-2014-08-13-2gb.img (or a more recent version), which acts as a firewall / router. It has two network interface, one USB ...
0
votes
1answer
212 views

How to redirect URL:PORT traffic to multiple external IP:Port?

Currently, I'm using iptables to redirect incoming requests for "website.com:27015" to "xx.xx.xx.xx:27015". Problem is, since iptables redirects via the port 27015, I can only redirect to one single ...
0
votes
2answers
1k views

Route subnet requests from wlan0 to eth0 on Ubuntu 14.04

My raspberry pi is connected via Ethernet to my Ubuntu 14.04 machine (192.168.1.0/24 on eth0). This machine is connected to the Internet through a Fritz Box WLAN Router (192.168.0.0/24 on wlan0). The ...
0
votes
1answer
195 views

Browse internet through another host without having external public ip on any host

I need to browse several websites (that also have flash content) through my home internet, while im in my work place. So from the website servers they see only access from my home IP. There is no ...
0
votes
1answer
206 views

linux gateway / firewall IPtables config

The KVM host is acting as a gateway / firewall for all of the virtual machine's it runs. It has a /26 public IP space configured on LAN interface em1: 1.1.1.1/26 It has a /30 rfc1918 IP configured on ...
2
votes
1answer
1k views

Can't access any remote network routes using OpenVPN client

My home network has an OpenVPN server installed and working. I can connect into that network from Windows machines using the OpenVPN client software and everything works fine. I have an Ubuntu laptop ...
4
votes
2answers
1k views

Two hosts can't ping one another

I have two hosts in my network. Both are connected to my router. From another host, I can ping and ssh into both of them. Both have an excellent connection to all other hosts. However, they cannot ...
-1
votes
1answer
566 views

Routing Problem OpenVPN / KVM

I've set up a rented root server with KVM and OpenVPN. In order to administrate VMs without a public IP the VM guests are connected to a Host/Guest private network: 10.10.10.0. Now i want to access a ...
0
votes
1answer
349 views

Share Internet from laptop (connected to LAN) to Android using WIFI router

The idea is: Internet - eth0 - Laptop - wlan0 - router - Android Static IPs everywhere. IP ranges are different. Could not establish bridge. bridge-utils unable to add wlan0 to bridge. Android ...
0
votes
2answers
146 views

How do I connect two remote servers

I've been working with LANs using Ubuntu for some time now. So I have 2 office locations, each with their own Ubuntu servers. Now we need to link them and we have been provided with a leased line. In ...
1
vote
2answers
127 views

Working with two internet connections

That's my server network setup: /etc/network/interfaces auto ethLAN iface ethLAN inet static address 192.168.10.3 netmask 255.255.255.0 network 192.168.10.0 broadcast 192.168.10.255 auto ethOI ...
2
votes
1answer
363 views

Configuring two internet connections

First, I'm know there's lots of topics about this kind of problem but I can't found a solution to my specific problem. In my setup I have a Linux server with three interfaces: ethLAN for LAN with IP ...
4
votes
1answer
8k views

Using Ubuntu 14.04 as router with iptables, clients can't go online. Probably DNS issue, iptables setting needed

CORRECTION 3: SOLVED! I needed to add the the official DNS server of my departement's VLAN as DNS to the clients. I've read through a large number of posts about iptables issues when using Linux as ...
0
votes
1answer
1k views

Routing internet traffic through vpn only when connected

I set up a pptp vpn server and can connect to it with my laptop without any problems. However, connecting to the vpn causes issue with routing (i.e. I am not about to connect to the outside web). To ...
1
vote
1answer
330 views

Routing in computing cluster

I'm trying to set up a computing cluster composed of four nodes. Each node have 2 interfaces p1p1 and p2p1. The first node - head node - should be visible form the outer world. It should route all ...
1
vote
1answer
156 views

Question about routing VMs with static IPs in Ubuntu (Unsolved)

I have a server with an external provider that is running Ubuntu 12.04. The server is having a static IP. I have installed VMware workstation and I am running some virtual machines, one of them is for ...
2
votes
2answers
10k views

openssh server is refusing connections by blocking or resetting

On a quite fresh install of Ubuntu 14.04 (machine1), I have openssh-server with a completely default config. When connecting from machine2 on the LAN, with an empty ~/.ssh, I get the following debug ...
1
vote
1answer
2k views

Routing table incorrect at startup

Whenever I reboot my Ubuntu server, the routing table is incorrect for the default route. The routing table correctly specifies the LAN IP address 192.168.124.0/24. All other traffic should go through ...
0
votes
1answer
438 views

Setting up VMs on different subnets

I run a server on IP X.Y.3.7 and i want to run multiple VMs on it using libvirt. I set up a bridge device: auto eth0 iface eth0 inet manual auto br0 iface br0 inet static address X.Y.3.7 ...
0
votes
2answers
2k views

Two subnets on one interface

So Im trying to configure a zoneminder video server that connects to ip cameras on the lan but I would like the cameras to be on a different subnet as our office and Im not sure how to accomplish that ...
2
votes
1answer
1k views

OpenStack Neutron outside communication through router doesn't work, local between VMs does

I am pretty lost with this one for few day now and can't move further. Any ideas will be very welcome. My private net for VMs: 10.5.5.0/24 Outside link via 192.168.22.0/24 (my router's IP ...
1
vote
0answers
495 views

Installing xubuntu-desktop breaks cloud-init (routing to 169.254.169.254)

Run Ubuntu Server 12.04 (or a later version) in a VM. Reboot. Cloud-init continues to work. Then install xubuntu-desktop. Then reboot; you will see that there is now a broken route to the ...
0
votes
1answer
525 views

Two gateways and two interfaces

I wan't to configure my ubuntu server as shown below. I need the clients in the 192.168.3.0 network to access internet through gateway 192.168.0.14, but at the same time i need 192.168.0.13 router ...
14
votes
2answers
13k views

persist port routing from 80 to 8080

I use amazon EC2 instance which works via ubuntu. By default according security restrictions I can't bin my application to port 80, so I just bind it port 8080 and then set routing redirect from port ...
14
votes
2answers
35k views

How can I make VirtualBox guests share the host's VPN connection?

Question When I start my VPN on my ubuntu desktop computer which acts as a router, the attached subnet loses internet connectivity, but is still accessible (LAN). Ideally, I would like to know how to ...
3
votes
3answers
1k views

Network Manager breaks manual routes

I have Ubuntu 13.10, Saucy Salamander x64 running as a guest in VirtualBox (with Windows 7 as a host). I wrote this /etc/network/interfaces because I need to add a large number of permanent, manual ...
0
votes
2answers
629 views

Connected to VPN but still same IP

I am trying to setup a VPN connection on my machine, Ubuntu 12.04. The steps I did are the following: sudo pptpsetup --create myvpn --server 123.123.123.123 --username vpnuser --encrypt sudo pon ...
0
votes
1answer
699 views

Connect to virtual host from local network

Configured bind9, apache and all related services. Problem is; I am able to connect to my sites from outside, www.mysite.com (example) is ok. In such case my - client IP is different than servers IP. ...
0
votes
1answer
86 views

Interface for my router in Ubuntu

I would like to know if there is a way in which I can create an interface in my Ubuntu 12.04 LTS Desktop for my router. My Goal: I want to tcpdump the ip address of the router which is 192.168.1.1. ...
2
votes
1answer
566 views

help understanding iptables router script and error

Hello I have this routing script that I'm using which runs when all the network interfaces are up: #!/bin/sh PATH=/usr/sbin:/sbin:/bin:/usr/bin # # delete all existing rules. # iptables -F ...
0
votes
1answer
179 views

Is my OpenVPN connection doing its job?

My first question is whether or not my openvpn connection is working as it is supposed to (routing all network traffic via the tun0 interface). When I type netstat -rn I get the following: $ netstat ...
5
votes
0answers
4k views

Integration multiple internet connections ISPUnity vs Ubuntu Bonding

I have Ubuntu 13.04 with 2 ethernet cards and a WiFi card. I also have 3 ISP connections. I have to configure linux to use all 3 connections. My main concern is to increase outgoing bandwidth (FTP ...
0
votes
1answer
267 views

How does a computer decide which network interface to send traffic to?

I have a computer (Ubuntu) with one wired and one wireless network interface. The wired one is statically assigned and connected to another single machine with a statically assigned address. The ...
0
votes
1answer
1k views

Add a virtual interface to the same subnet and route both

What I am trying to accomplish is extremely close to this, with one twist. I want the second "nic" to be a second ip address (I guess sometimes called a virtual nic), added to the same physical nic ...
0
votes
1answer
3k views

Forwarding multicast packets in wired-wireless-nat-router

I am receiving IPTV (multicast) from my ISP (Deutsche Telekom) and it is already working without any issues for the main receiver which is directly connected to my dsl router (AVM Fritz!Box 7390). ...
7
votes
2answers
53k views

Set up permanent routing (Ubuntu 13.04) [duplicate]

I have 2 connections: wlan0 (gw: 192.168.1.1) and eth0 (gw: 192.168.2.1). My default connection is wlan0, but I wanted some websites load through my eth0, so I set up routing for those websites/IPs ...
7
votes
1answer
24k views

Forwarding traffic between 2 interfaces

I have 2 VLANs connected to a 'router'. All the machines can ping other machines within their own VLAN and the router. The router can ping all of the machines. I am trying to get machines to talk to ...
1
vote
0answers
498 views

Permenant Route Addition

I'm trying to add a route permanently to my VPS, at the moment I have to run the command manually every time I find out the server has rebooted. I read somewhere I had to add something to ...
3
votes
3answers
8k views

Trying to enable IPv6 results in a “No route to host” error

I'm configuring a dual stack network on a KVM server using static IPv4 and IPv6 addresses furnished by my provider. I input all addresses, nameservers and gateways as required when installing Ubuntu. ...
2
votes
1answer
3k views

Help configure multiple network interfaces

I'm running Ubuntu inside a VM on my work laptop. I have to run my VPN software on my VM Host system and need access to my VPN network from within my Ubuntu VM. I can set my VM's network interface to ...
9
votes
1answer
18k views

How to route all internet traffic through Tor (the onion router)?

Could you explain how to route all internet traffic through tor? I am using Ubuntu I really don't know how to do it. Actually I am using tor for twitter only, and I'm afraid of DNS leak. So I need to ...
1
vote
1answer
633 views

Ubuntu server routing table

i've a ubuntu server (13.04) with 3 NICs. This is my routing table: Destination Gateway Genmask Flags Metric Ref Use Iface default vodafone.statio 0.0.0.0 UG ...
2
votes
1answer
4k views

Forward TCP Connections with Iptables

I receive connections to my server from several ip addresses I want to route these connections just like rinetd does but based on the ip the connection is coming from to connect to a specified host. ...
1
vote
2answers
4k views

How to control the up order of network interfaces?

I have /etc/network/interfaces as follow. Every time the system boots up, the route is wrong so the gateway is not reachable. I'd have to ifdown br0 && ifup br0 to fix the route table and make ...
0
votes
3answers
108 views

Routing example.com/page to example.com:[port]

I have a server with multiple services running, for example: subdomain.example.com:1234 subdomain.example.com:1235 subdomain.example.com/1236 Accessing these directly will take me to the web gui ...
15
votes
2answers
64k views

How to make IP forwarding permanent?

I know that I can enable IP forward by echoing 1 to /proc/sys/net/ipv4/ip_forward, but how can I make this permanent? By the way I want another method rather than start up scripts, is there any?
2
votes
1answer
2k views

OpenVPN - Routing issue

Server: Ubuntu 11 (Openvz VPS) Client: Windows 7 Issue: clients connect successfully to VPN, but loss of internet access once inside the VPN. Facts: Everything mostly defaults Is a ...
1
vote
1answer
281 views

How to IP forward only between 2 interfaces out of 3 installed?

I'm using ubuntu 12.04. There are 3 NIC on my PC but I wish to do ip forward only on 2 of them that act as a router. The 3rd NIC need to be separated from the other 2 and not be able to see the ...
2
votes
1answer
109 views

Networking and Traffic routing question

Hello I had a few of questions related to networking, let me list them in a logical order: 1) Can multiple interfaces be bridged together so that it results in increased bandwidth? 2) Can wired and ...
0
votes
1answer
848 views

IPv6: ping6 from foreign host works, but cannot ping6 on same host

I have a strange issue with ipv6 on Ubuntu 12.04. There are two hosts, directly connected to the internet. Both have assigned a /64 network. They are properly configured with a /128 endpoint each ...