A gateway is a network point that acts as an entry way to another network.

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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 ...
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Configure DHCP on Ubuntu 12.04 to share internet to subnet

I'm well aware of the plethora of documentation on setting up NAT and a DHCP server in order to share internet to a LAN. Here are a few articles that I think are getting me close, however I still ...
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32 views

Configure two ipaddress from same subnet using 2 Bridged adaptor VirtualBox

I have configured 2 interface with 2 Bridged adaptors in Virtual Box from same subnet, the /etc/network/interfaces file configuration for two bridge network is shown below. auto eth0 iface eth0 inet ...
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25 views

how to give access internet from a system with private ip

I want to access internet from a ubuntu 14.04 system with private ip. I have already enabled the Masquerading/Port forwarding on the machine having public ip. This machine with public ip is a CentOS. ...
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61 views

can't connected LAN with static gateway router

I try to connect LAN with my college network with static gateway router. My LAN is 192.168.0.0/24 and my college network is 10.42.11.0/24. But client (192.168.0.3) only ping router(10.42.11.243). ...
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43 views

How to configure gateway on a VPS Ubuntu?

I am setting up a DNS server on my vps, and came across on the reverse IP that must provide the gateway. However when I use the command route -n I have the following return: Kernel IP routing table ...
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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 ...
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1k views

Ubuntu 14.04 as a Gateway / Router and a Firewall

My current system setup is Ubuntu 14.04 Desktop 64 Bit,and I am using Internet from a router using a public IP eth0 - WAN Public IP 182.x.x.x eth1 - LAN private IP 192.168.0.1 Now I want to ...
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Installing Ubuntu on NE56R

I have been trying to fix a computer for a client. There was no way for me to get back in to the system (the laptop came pre-loaded with Win 8.1), so I was unable to grab the PID. Now I am having a ...
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115 views

Supersede default route to other network interfaces

I have two network interfaces: wlan0 and eth1. wlan0 connects to a camera over WiFi, getting all it's info from the camera's DHCP (the camera itself hosts its own network). eth1 connects to the ...
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69 views

Is there a way to bridge out SMS via gateway on FreeSWITCH?

I wonder if there is a way to send sms messages out from freeswitch box via a gateway just like bridge api in mod sofia for calls. I can originate and receive calls from a sip provider via an ...
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40 views

Where to add this route address: route add -net {ip_address1} netmask {ip_address2} gw {ip_address3}

Every time I need to enter this command from terminal in order to access the required machine. Can we add this entry in any file so that even if we restart the machine we need not to run this command. ...
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131 views

I can SSH into the server remotely but the ubuntu 14.04 cannot ping the internet

I've tried pinging google as well as 8.8.8.8. Neither works. Results for cat /etc/network/interfaces The loopback network interface auto lo iface lo inet loopback The primary network interface auto ...
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137 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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34 views

Ubuntu 12.04 keeps getting the wrong gateway irrespective of what I do

My Ubuntu 12.04 box connects via another machine on the network. I want to force a gateway of, let's say, 173.20.1.222. However, irrespective of what I have tried it keeps getting a gateway of ...
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179 views

Routing with virtual interfaces

How do I setup Ubuntu Server (14.04.01) with public eth0 and private eth1 to act as a router for multiple public/private IP pairs. eth0: 200.0.0.2 eth0:1: 200.0.0.3 eth1: 192.168.0.1 ...
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2k views

How to get default gateway with a dhcp

I have ubuntu 12.04 and I have configured /etc/network/interfaces like this auto eth2 iface eth2 inet dhcp I also have auto eth1 iface eth1 inet static address 60.60.60.1 ...
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693 views

No gateway ping in ubuntu and fedora, but ok on windows

I am facing a confusing problem. while using my home Wifi on ubuntu 14.04 amd64, my internet connection suddenly gives no response but in notification area it is shown as connected. I switched my ...
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109 views

Trouble Installing Ubuntu 14.04.1 on Gateway GT5404

I have a Gatway GT5404 (desktop) with 2GB's of ram and a newer HDD, and a refresh of windows 7 ultimate. Ive tried installing Ubuntu via USB by extracting the iso files into the USB, Extracting the ...
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190 views

How can I prevent being locked out after changing the iptables default policy?

I am working on a experiment when I (client) ssh a gateway and run sudo iptables --policy INPUT DROPthen the gateway doesn't accept any communucation(or input) from my client. By running sudo iptables ...
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761 views

Gateway Laptop Won't Boot From USB Drive

Well it kinda boots, but right when it should reach the screen to ask to install or try, I only get a black screen. I tried to put a HDD with Ubuntu on it in my laptop, it boots fine until it reaches ...
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204 views

IPV6 dynamic route from DHCP

IPV6 was configured locally in my network in Ubuntu 12.04, where one of my machine runs the DHCP server and other as client. But the client was not acquiring the route from DHCP. Do we have to give ...
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492 views

Unable to ping inside or outside network with default gateway 0.0.0.0

I've been around here before and I could usually piece together everything to more or less get myself up and running, but this time I'm truly stumped. I'm trying to connect my new 14.04 install to a ...
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234 views

A question about the Internet/ConnectionSharing (NAT) via iptables

I'm following this tutorial to setup a NAT gateway: https://help.ubuntu.com/community/Internet/ConnectionSharing#Ubuntu_Internet_Gateway_Method_.28iptables.29 With simple eth0 as WAN and eth1 as LAN ...
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171 views

Conneted to wlan0, but have no internet

I have a problem that only occurs on my home network. If I log on to Ubuntu, I get a wifi connection, I have an IP-address, everything looks right, but I have no internet connection. I can use the ...
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412 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 ...
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5k views

When are network, broadcast and gateway required for configuring a network interface manually?

https://wiki.debian.org/NetworkConfiguration#Bridging_without_Switching The above URL says, the following. But it is not clear to me when they are optional and when they are not. Could you provide me ...
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269 views

ubuntu 1310 with two NICs: one with dynamic address and one with static address

I am running Ubuntu 13.10 on a laptop with one physical wired NIC (eth0) and one physical wireless NIC (wlan0. The current config is shown below (I removed lo interface since it is of no relevance) ...
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144 views

How to unistall Ubuntu?

I have a Gateway laptop and I installed Ubuntu 13.10, and I want to revert back to Windows. I didn't do the dual boot option, just to let you know. Can anyone help me out?
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1answer
3k views

How can i give internet access to local network via DHCP/Gateway server?

I think i now find myself somewhere between cognitive overload and like a babe lost in the woods. Thus i hope someone out there can assist me! :) I setup a Ubuntu 12.04 server on my home local ...
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265 views

ip route - connecting two tun dev

Im trying to get two tun dev connected. If got everything, but the nat running. One tun is secure connection and the other tun for internet access. If got everything, but the nat running. There is a ...
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4k views

How can we make our ubuntu server router as gateway mode to router mode?

based on this sample guide link: http://ubuntulinux.co.in/blog/ubuntu/nat-configuration-with-iptables-in-ubuntu/ with this code: iptables –append FORWARD –in-interface eth1 -j ACCEPT it ...
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201 views

Tried install of Ubuntu onto Gateway NV79 = ends up with dark screen

Okay, I'm a total NEWBIE, so I apologize in advance if I don't word this correctly. :) I am trying to install Ubuntu (tried several versions) onto a Gateway NV79 laptop, using a USB drive. ...
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753 views

Wireless issues on Gateway M-6750

I've just installed Ubuntu 13.04 and I can not figure out how to get the wireless working, wired worked fine. I have followed a few instructions on driver downloads but I really do not have a clue ...
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723 views

How to make FN keys change brightness on Gateway m7315u?

I know this not a new issue concerning brightness, however, I am anxious to get this working. I added acpi_backlight=vendor to the boot parameters which allows me to change the brightness using ...
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9k views

creating a static route and a default gateway

Im having troubles with my routing table, im getting RTNETLINK answers: file exist How do i set my default gateway (internet) to 192.168.100.1? and a static route going to 10.169.5.0 /26? i have 2 ...
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1answer
3k views

Ubuntu as a Router/Gateway - Unable to access WAN

I am currently trying to set up a home router using a machine running Ubuntu 12.04. The machine has two ethernet ports. eth0 is LAN and eth1 is WAN. I have set eth0 to a static ip and have eth1 ...
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328 views

How website name get resolved?

I'm using Internet via a usb datacard on Ubuntu 12.04. I never configure domain name server. My question is how website name get resolved? Is there a inbuilt domain name server in system? if not ...
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129 views

Ubuntu 12.10 indicator-sound shows as mute (three hyphens

I kind of have a problem. I installed Ubuntu 12.10 and my sound seems to be fine. I can play videos etc. The trouble I have is the indicator-sound applet shows as a speaker with three hyphens as if ...
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487 views

Cannot set default gateway to specific LAN

Recently, I am trying to add a default gateway to my ubuntu machine to be able to send/receive packets from an another LAN through the router. However, everything I do the result is the following: ...
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1k views

Second NIC on dual homed server not working

I'm trying to set up a server with two IP addresses on different connections. The first NIC works fine (since I removed the gateway from the second), but I can't ping out or to the second NIC. ...
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357 views

Prioritizing WLAN over LAN connection

I'm using my LAN connection to work with a peripheral device, and I would like to use my WLAN connection for internet access. The problem is that Ubuntu considers LAN connection as priority, and ...
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1answer
691 views

ubuntu 12.04 dhcp gateway server

I need a little help. I will explain this the best I can so people don't have to ask extra questions. Essentially, I have a dell poweredge 2650, with 2 nics. eth0 goes to my cable modem, while eth1 ...
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1answer
253 views

Using Ubuntu as a gateway for monitoring and possibly IPS IDS within Active Directory

Ok, I've searched for days, maybe you can point me in the right direction. I have an MPLS scenario with a shared gateway in a multi-domain M$FT AD environment. On the inside of the MPLS all of the ...
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2answers
5k views

DHCP server with multiple interfaces on ubuntu, destroys default gateway

I use Ubuntu, and I have many interfaces. eth0, which is my internet connection, and it gets its info from a DHCP-server totally outside of my control. I then have eth1,eth2,eth3 and eth4 which I ...
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Running 12.04 as a gateway - resolvconf, dhclient and dnsmasq integration

I have a gateway server which is set up originally with Ubuntu desktop 12.04 - perhaps a mistake, I don't know, something to bear in mind. I ripped out network-manager and now want to get ...
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518 views

How do I set up user level restrictions on a gateway?

I am aware that Ubuntu Server can be used as a gateway to allow Internet connection to a LAN. Then we use IP tables or other firewall settings to restrict (for example), certain websites from being ...
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691 views

Is there a way to connect to a local pc via a gateway without having the gateway shine through?

When I'm at work I can use nautilus to navigate files on other computers of the local network comfortably. Nautilus mounts the other computers file systems using ssh (sftp via gvfs). However when I'm ...
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1k views

define static routes at boot

I'm running Ubuntu desktop 10.04 and on every boot the machine cannot be accessed from outside the LAN. after running sudo route add default gw 192.168.1.1 everything works as expected. Is there any ...