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13 views

Direct Shared Connection Traffic to Specific Interface

On Server 2, I have interfaces eth0, wlan0, and wlan1. On Server 1, I have eth0. I want to share wlan1 on Server 2 with Server 1 via eth0. I want Server 1 to only use Server 2's wlan1, and Server 2 ...
2
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1answer
69 views

How to define gateway for 192.168.1.1 as 10.0.0.x with `route add`?

Let's say eth0 has an ip 10.0.0.10 and its gateway is 10.0.0.1. I want to add a route for 192.168.1.1 to use this interface. What is the difference between these 3 commands? route add -host ...
0
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1answer
35 views

Adding route on client using OpenVPN

So this is my setup. Laptop Running Ubuntu openvpn version 2.3.2 ( latest if using apt-get install ) I connect to a OpenVpn server that connects to an off-site network. I get the opnevpn client ...
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1answer
51 views

Unable to set proper routing between two networks

Three boxes running three different ubuntu flavours (14.04, 14.10, 15.04). I'm trying to get all of these to talk between themselves, while being on different subnets, and I can't figure how, yet. ...
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0answers
25 views

Basic Network Routing Question

I guess this is a very basic (dumb) question about routing. If I specify a route do I need to worry about a return path or does that also need to be specified? For example I have a WiFi hotspot on ...
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0answers
51 views

Connecting to VPN server closes SSH tunnel

Once I start to connect the VPN, I immediately lose the connection to my dedi-server. My aim is to still be able to ssh to my dedi-server, even if I connect to the external VPN server with my ...
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0answers
60 views

Use Interface Metric to Change Interface

I am using Ubuntu 12.04 64-bit on a laptop, and I want to switch default network interface between wlan0 and eth0. By using ifmetric (shown on this page), setting eth0's metric to 1000 and wlan0 to 0 ...
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1answer
32 views

Configuring two internet connections with Dynamic WAN IP

I had similar problems with this question, the difference is my WAN IP assigned dynamically from the ISPs. So how do I try the accepted answer with dynamic WAN IP ? ps: Because I do not have enough ...
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0answers
20 views

Ubuntu as a bandwidth throttling box on windows network

I need to test the performance of some applications over different capacity connections (broadband, EFM, LAN extension etc). How would i configure an Ubuntu server to sit between the main network ...
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0answers
21 views

Alternative gateway on ubuntu

I have one LAN card. I've divided it to sub interfaces. Is there solution to have different working gateways on this interfaces? I want when PC cannot reach to destination using first gateway it ...
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0answers
28 views

Switch on Two Network Interfaces

I am trying to write script to switch between two interfaces on a Uuntu machine, wlan0 and eth0. My primary reference is: Forwarding traffic between 2 interfaces -A FORWARD -i eth0 -o wlan0 -j ...
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1answer
36 views

suddenly lost host routing on ubuntu server

i have ubuntu 14.04 server, which installed as a web server. the server also has 35 routing entry. sometimes the server suddenly lost connection to one or two another server, which routing entry has ...
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1answer
89 views

Not able to access outside services though Openvpn in brigded bridged mode and routing everything thorugh the vpn

I have setup a small server with a bridged openvpn setup. My goal is use my network services and Internet connection from every location with Internet access. Right now I am just able to use services ...
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0answers
50 views

Setting Up a Routing Table for a Router

I have two network interfaces on my server. They are: eth0 - 192.168.1.2/24 gateway 192.168.1.254 eth1 - 192.168.2.254/24 no gateway as this interface is the gateway for this subnet I want ...
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1answer
273 views

Can ping to other router subnet but cannot ping host to host

Using VMware, I set 2 hosts connected through a router. All 3 virtual computers run Ubuntu 14.10. Host A (eth2: 192.168.1.11/24) Router (eth2: 192.168.1.12/24) (eth3: 192.168.3.2/24) Host B (eth2: ...
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0answers
32 views

iperf data not received on multiple ppp interface port

I am new to Ubuntu and want your valuable inputs. I have two USB modem dongles connected to Ubuntu 12.04 . After dialing through wvdial , I see two ppp0 and ppp1 interface created on ubuntu and both ...
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0answers
47 views

Routing error for a single IP address

One single IP address is routed wrong by one of my Ubuntu server 14.04's. This happens for the second time in about a month. The route it should have taken is to another server in the local network, ...
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0answers
56 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 ...
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1answer
87 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 ...
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2answers
445 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 ...
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0answers
164 views

OpenVPN connection makes Apache2 server unreachable from outside local network

I have a machine running an Apache2 server on Ubuntu Trusty Server, connected to the internet via a home router which is set to forward http/https ports to that machine. I'd like to have that machine ...
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0answers
109 views

I can no longer add a static route for a single host with /32 subnet mask in /etc/network/interfaces

Everything was working fine until today's reboot for updates. Basically I have a server with 2 network interfaces. One is the primary interface eth0 with internet connection. The other interface eth1 ...
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1answer
95 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
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1answer
110 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 ...
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1answer
624 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 ...
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0answers
105 views

routing through ubuntu server

Im having issues with routing from Windows/Linux/Mac machine through server and from desired interface out. So this is my configuration: My example will be Ubuntu -> Ubuntu -> out First machine: ...
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2answers
609 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 ...
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1answer
313 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 ...
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0answers
25 views

Using ufw as a firewall between network segments

I've been using Ubuntu server 12.04 as a router and it worked. Now I'm trying to add some security using ufw. I enabled the ipv4-forwarding feature in the configuration file and added a rule ...
0
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0answers
33 views

ubuntu 14.04 routing between 3 networks

I would like to get some assistance setting up routing. I have an ubuntu server 14.04 with 3 nics. configuration as follows: 192.168.1.0/24 dev eth2 proto kernel scope link src 192.168.1.1 ...
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0answers
37 views

Routing traffic to certain IPs over wlan0

How can I route traffic to certain IPs over wlan0? I have an ethernet (eth0) and a WLAN (wlan0) card in my computer. I want all traffic but the traffic to certain IPs to go through eth0. For a list ...
0
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1answer
214 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 ...
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0answers
104 views

How do I make permanent static routing over a range of IPs?

I am a newb, so I apologize in advance. I'm trying to setup some permanent static routing so that my Plex can bypass my VPN. I have a list and range of IPs that I need to add, but I don't know how to ...
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2answers
69 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 ...
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2answers
83 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 ...
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1answer
185 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
5k 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 ...
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0answers
52 views

Use Ubuntu as internet gateway

I do have the following setup and would like my ubuntu pc to work as the gateway to the internet: Access point: 192.168.2.1 Ubuntu (wlan0): 192.168.2.2 Various other clients: 192.168.2.x Now, ...
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0answers
110 views

How route works in ubuntu 14.04. box won't use set route

I am a little bit confused about a so simple task I am sorry I had to post this. I have a box let's say routing OS (mainbox) with local IP : 192.168.25.17 . That box has a VPN connection with another ...
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0answers
241 views

How do you save the routing table on the Beaglebone Black(angstrom )

I Flashed my beagle bone with the angstrom image and I set it up so that it can get internet over the USB connection and one of the steps for that is this command: route add default gw 192.168.7.1 ...
0
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1answer
690 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 ...
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1answer
198 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
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1answer
143 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 ...
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2answers
6k 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
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1answer
944 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 ...
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0answers
137 views

When the system resumes the default route is missing [closed]

A notebook running Ubuntu 13.10 (xfce), using wifi, and until recently when I shut the lid down it suspended nicely, and when I opened the lid it resumed, and auto-connected to the wifi. Now it no ...
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1answer
241 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 ...
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2answers
859 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 ...
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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 ...
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0answers
335 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 ...