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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 ...
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 ...
2
votes
1answer
102 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 ...
1
vote
1answer
226 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
144 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 ...
1
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1answer
233 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 ...
1
vote
1answer
124 views

Routing 2 ISPs to 2 different networks

Ok, so here is my scenario. eth0 and eth3 point to 2 different ISPs, eth1 is an internal network say on 192.1.1.0 and eth2 is on another network say 10.1.1.0. I want each network to be on their own ...
0
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1answer
49 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 ...
0
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1answer
48 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 ...
0
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1answer
113 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
1answer
132 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 ...
0
votes
1answer
247 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
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1answer
793 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 ...
0
votes
1answer
408 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 ...
0
votes
1answer
539 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
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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
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1answer
2k views

Operation times out trying to SSH outside LAN i.e. from internet to LAN no connection is established

I run Ubuntu 12.04 and have no success connecting with SSH from "Internet". The router is a TL-MR3420 which is set up to forward requests to one of the NIC's on ubuntu machine (which has in total 3 ...
4
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0answers
3k 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 ...
3
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0answers
844 views

How can I tell Ubuntu to keep the correct routing table?

Ubuntu sets a wrong routing table if the router is switched off and on again: Destination Gateway Genmask Flags Metric Ref Use Iface 0.0.0.0 192.168.1.1 0.0.0.0 ...
2
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0answers
34 views

Routing traffic over p2p1 and tun0 correctly

I have been trawling these questions and trying many different solutions to get this working, but I seem to have a problem with getting my routing set up correctly. I have a box installed in a network ...
2
votes
0answers
89 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 ...
2
votes
0answers
402 views

iptables, forwarding between interfaces

I'm trying to setup a router using iptables. But, after a lot of examples I've tried, I can't get anything to work. My idea is to setup a box in between my Cisco and the main switch for firewall, ...
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0answers
27 views

14.04 LTS / Routing with 2 WAN Lines … on Dom-0 Xen host drives me nuts

Short note: Well I think I might have a solution but need to prove it first. Regarding the NAT on the Hardwarerouters to each WAN-line seem just to do NAT for its own subnet, so I will simply need ...
1
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0answers
52 views

openconnect either no internet or no network access

I tried to use openconnect as alternative cisco-pvn client. When connecting to the vpn, my internet connection gets lost but my intranet connection works. This is a common problem and the suggestion ...
1
vote
0answers
31 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 ...
1
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0answers
76 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 ...
1
vote
0answers
31 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 ...
1
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0answers
61 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, ...
1
vote
0answers
389 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 ...
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0answers
422 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 ...
0
votes
0answers
9 views

Cannot connect to internet due to route table oddness

Environment: Ubuntu 14.04 Problem: I want to connect to my VPN at work from home. Whenever I connect to my wireless, my route is set up to the work route. The home gateway is supposed to be ...
0
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0answers
13 views

How to disable “return routability procedure” in mip6d?

I am using mip6d on ubuntu 12.04 with kernel 3.8.2. When I change the IP address (CoA) of Mobile Node, the Mobile Node before sending a update message to CN, sends Care of Test init and wait for CN's ...
0
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0answers
13 views

permanent disabling ip_forward for ubuntu server happens be a problem

I have just installed the latest ubuntu server. This is the state of my server right after booting: root@vzu01-ubuntu:~# uname -a Linux vzu01-ubuntu 3.16.0-30-generic #40~14.04.1-Ubuntu SMP Thu Jan ...
0
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0answers
34 views

Configuring Ubuntu as router

I'm trying to create virtual network using VirtualBox. Ubuntu is my router in this configuration. Ive got 3 machines. One Ubuntu and two FreeBSD. I'm trying to connect both BSD machines through ...
0
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0answers
184 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 ...
0
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0answers
29 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 ...
0
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0answers
30 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 ...
0
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0answers
62 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 ...
0
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0answers
50 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 ...
0
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0answers
192 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 ...
0
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0answers
142 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 ...
0
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0answers
113 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: ...
0
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0answers
29 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
votes
0answers
35 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 ...
0
votes
0answers
40 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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0answers
133 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 ...
0
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0answers
66 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, ...
0
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0answers
149 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 ...
0
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0answers
279 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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0answers
190 views

Wireless lan connection stops working after 3 pings or after loading one web page

My boss asked me to install Ubuntu 12.04 LTS 32 bit on an old-ish laptop with an external US Robotics Wifi card and an internal ethernet card. I have gone through all the painful hops about installing ...