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1answer
24 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 ...
1
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1answer
22 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 ...
0
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0answers
29 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
52 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
18 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
18 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, ...
2
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0answers
26 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
56 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
165 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
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0answers
128 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
64 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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1answer
55 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
83 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 ...
1
vote
1answer
305 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 ...
0
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0answers
87 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: ...
3
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2answers
382 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
216 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
21 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 ...
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0answers
25 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
28 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
votes
1answer
186 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
73 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
55 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
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2answers
66 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
133 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 ...
3
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1answer
3k 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
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0answers
45 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
77 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
169 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
votes
1answer
563 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
178 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
137 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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2answers
4k 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
545 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 ...
1
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0answers
99 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 ...
0
votes
1answer
179 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
568 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 ...
0
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0answers
92 views

'proto' field in 'ip route add'

I have added two routes using: ip route add 100.100.200.0/24 via 100.100.100.1 proto 89 and a different protocol number. My question is if this 'proto' number is same as IP protocol numbers (i.e ...
0
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0answers
46 views

What the difference between 'ip -6 route' and 'route -A inet6'?

I use the following commands to add a default route entry whose next hop is fe80::20c:29ff:fe75:b579: sudo route -A inet6 add default gw fe80::20c:29ff:fe75:b579 dev eth0 sudo ip -6 route add default ...
1
vote
0answers
15 views

How do I determine the route that a download took?

Basically I have 6 VMs set up, all configured with static routes, providing a client 2 routes to a server. The static routes have all had metrics added to them so that the the traffic takes the ...
0
votes
0answers
15 views

routing in ubuntu 12.04

I would like to know how to route to, what I want is that when I send a request to my machine for a specific port is automatically redirected me to another ip with specific port. Any help would be ...
0
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0answers
159 views

nm-connection-manager “shared connection” does not route to inner network

I'm using a Raspberry PI to share it's wifi connection with an ethernet-switch. In the Connection Manager, I set the eth0-interface to shared, so it would use the wlan0-interface as the internet ...
1
vote
1answer
847 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
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0answers
303 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
53 views

How do I route an OpenVPN connection to an interface?

I want a service on my server to connect to the Internet using an OpenVPN connection. While I could connect the server to the OpenVPN server directly, it would (a) make the rest of the server connect ...
0
votes
1answer
311 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
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0answers
47 views

How to allow ip forwarding out of source interface

I have enabled ubuntu for ip forwarding, and that works. However, sometimes the routing table has a next hop out of the same interface the packet came in on. It triggers an ICMP redirect as expected, ...
0
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0answers
22 views

Using server as controlled switch

I have an Ubuntu server with 3 NICs installed. I have two classrooms. I want to control the two classrooms with IPtables separately. My problem is that I can't (bridge eth0 to eth1) and (bridge eth0 ...
7
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1answer
5k 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 ...
6
votes
1answer
15k 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 ...