Questions tagged [gateway]

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

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Direct Routing for 2 OpenVPN Connections

I setup a Ubuntu VM with 2 OpenVPN tunnels up and running. What I want is a simple forwarding (complete traffic) coming from local LAN interface 1 (ens160 10.0.247.2/24) forwarded to VPN interface ...
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Newbie to networking and can't get new server to connect to the internet. Looking for some help

I have just taken possession of a new virtual machine that I have now installed ubunutu on. When IT gave me the details for the server, they included the below information: test.ist.berkeley.edu IN A ...
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Bad internet access after defining fix ethernet IP-address

I have assigned a fix IP address to my ethernet connection for some project. Since then, my Wifi is extremely slow and sometimes I can't even access webpages. As I'm not specialist into this, so I ...
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Ubuntu 20.04 gateway, iptables NAT and port forwarding

i am in a maze, i try in vain to setup the rules to be able to acces from internet my internal web server (192.168.12.10). at home, i have an Ubuntu 20.04 gateway (192.168.12.1) with two interfaces : ...
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Internal lan - without NetManager

I am building an internal home office lan. The lan has a self made IP table: 192.168.1.1 to 20 office stations. One pc of them (the ip 10) is the default gateway and it has a wi-fi connection active. ...
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IP forwarding does not work

I have 2 Ubuntu systems , both have Ubuntu 20.04, one has server (5.4.0-42-generic) , the other has desktop (5.4.0-58-generic). I can get ip forwarding working on one system which has the server . But ...
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Why is my LAN and DHCP conf “not a private class subnet”?

I am maintaining a gateway server with a small LAN & wifi which acts as a firewall, backup server, broadband gateway, media server etc. It was getting overcomplicated with Bind9 so I just de-...
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cannot ping other machines in network

Can ping the ubuntu from other windows machine but not the other way round. I can access the gateway 192.168.1.1 but not windows machine at 192.168.1.6 from ubuntu(192.168.1.7). Internet is accessible ...
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How to get OpenVPN in AWS to push DNS to a client gateway (ubuntu 16.04) when up using best practices

I would like to get Open VPN to correctly use a private DNS in AWS. I have seen various hacks to get this working but I'd be interested to achieve best practice and the most future proof solution. ...
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37 views

Setting two gateways for 2 different interfaces in my device

This is my /etc/network/interfaces file auto eth0 iface eth0 inet dhcp iface eth1 inet dhcp auto eth0 iface eth0 inet dhcp iface eth1 inet dhcp iface eth1 inet static address 192.168.111.6 ...
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183 views

different gateway subnet on ubuntu makes network unreachable

Edit: The VM was moved from one hyper-v to another. In the first hyper-v it had a different IP, Mask and Gateway, and it worked. Then I moved it to the new hyper-v and changed the network details. I ...
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how to make nslookup on client to return gateway IP for a dns on server

I'm a newbie on networking and I'm looking for a way to report gateway's IP address instead of server IP address on a client, in a simple 1server, 1client and 1 gateway setup. (in ubuntu 16.04) I ...
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Default route being added randomly while NIC is already up, post-up action doesn't help

I have an Ubuntu 16.04 machine that I'm using as a temporary router while I fix some issues with my normal router. The network looks like this: Thus, the normal flow of traffic out to the internet ...
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Install Jasmin Gateway on Ubuntu Server [duplicate]

I am trying to install Jasmin Gateway on Ubuntu Server 16.04 LTS, but I have the error below: root@ds234:/home# sudo apt-get install python-jasmin Reading package lists... ...
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Netplan bonding 2 gateways (2 ISP)

My office is in an area where wired internet connection is poor and unstable so I'm trying to bonding 2 ISP. I have 2 modems connected to two different phisical interfaces on my Ubuntu 18 server: ...
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Linux gateway is forwarding traffic to its own gateway when tunnel is down

I have a box (192.168.1.2) that connects to a VPN creating a tunnel. This box has a 192.168.1.1 default gateway which is my router's internal address. The rest of my network has 192.168.1.2 (...
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Malware lab without virtual machines (Lubuntu as server/gateway)

I would like to set up a malware lab without virtual machines. On one laptop I have Windows 10, on the other Lubuntu, which will be used as a gateway/server. On the latter, I want an ethernet ...
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How to set default gateway in Ubuntu Server 18.04 with netplan

I have a single network interface on this server named enp2s0 This interface had a static address 192.168.2.xxx with gateway 192.168.2.1 Now I changed the static address in yaml file to 192.168.1.xxx ...
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Need to set default route to upstream DHCP interface on Ubuntu Server 18.04 LTS

I'm building an edge router using Ubuntu Server 18.04.03 LTS and need to configure the routing table to define the default route as being the upstream / WAN interface, which gets its IP address and (...
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43 views

Access service via url:port from outside

I have the following network setup: Gateway/proxy and firewall box with Firehol installed 10.xx.xx.xx - Ubuntu internal server behind the gateway 192.xx.xx.xx - Ubuntu All traffic is routed ...
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Networking question ip routing

Let me start by saying I am a complete novice with very little networking knowledge. I have set up a VPN via a guide and everything is working fine, however, I would like for the IP routing or ...
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120 views

Directory 'mc/etc' does not exist

I am try to configure gateway. I am follow step 4 of this https://trueconf.com/blog/knowledge-base/configure-xen-hypervisor-ubuntu-server-14-4-05.html When I open to edit mc/etc/sysctl.conf file I ...
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924 views

Cannot ping past gateway

My wifi is connected but I cannot access the Internet irrespective of the network to which I connect. I can ping the gateway but cannot ping 8.8.8.8 (Google's DNS) which shows: Destination Net ...
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Dell Edge Gateway 5100 - Ubuntu Core 16.04 - Fontconfig error

I have been developing a Snappy application on the Dell Gateway for the last year. I am nearing the end of development and I am experience a fault that I need some help with. If needed, can this be ...
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97 views

Automatic route deleting in a specific network

I'm on Ubuntu 18.04 and I try to learn more on netplan. When I'm in school's network I need to access to the LAN but I don't want my internet traffic goes by their gateway. I can connect to network ...
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how to keep local default gateway when connecting witn VPN

i used VPN to connect to my Windows server 2016 at our office. vpn pptp and Remina. everything works very well. but when i disconnect, the default gateway is changes and do not come back to local ...
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4k views

How to bridge two interfaces with netplan

I want to setup a gateway on an Ubuntu 18.04 machine with 2 eth ports - ETH1 - WAN connection, connected to my corporate network with DHCP ETH0 - LAN connection, connected to my laptop statically I ...
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106 views

Dell Gateway 5000 with Ubuntu Core 16 doesn't identify sim card inserted in the slot

I have Dell Gateway 5000 with Ubuntu Core 16 installed in it. I am inserting a sim card in the slot, but the Gateway doesn't identify it. The led indicating the mobile network is off. The sim card is ...
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45 views

Ubuntu 16.04 - Wi-fi , IP is on a network different than my gateway

I have a partitioned Lenovo pc. One partition with Ubuntu desktop 16.04, one with Windows 10. Windows has internet connection, Ubuntu does not. It is on a different network. I tried gathering some ...
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429 views

two machines direct link + connection through switch

This is crosspost from Super Users, since it might attract more people here. I have been trying for the last couple of days to get a setup like the one below working. I have a server Ubuntu 16.04 ...
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1answer
11k views

Networking problem on Ubuntu 18.04: no gateway

After a fresh installation of Ubuntu 18.04 LTS I have configured netplan to use a static IP address by following the instructions available online here: https://www.tecmint.com/ifconfig-vs-ip-command-...
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301 views

Cannot properly configure a gateway on Ubuntu 16.04

I'm trying to make a gateway using Ubuntu 16.04, my server has the following nics: enp4s0 Link encap:Ethernet HWaddr 00:15:c5:f6:c0:36 inet addr:192.168.0.101 Bcast:192.168.0.255 Mask:...
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7k views

How do I stop netplan from binding a default gateway on every interface

I have a fresh install of ubuntu server 17.10, however the problem may affect previous versions, but this is the first time I have encountered this situation. The server is running 2 separate network ...
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2answers
7k views

Ubuntu server 16.04 to 2 gateway at same time

I cant find a working guide to make work the following scenario: Need to configure a server to be capable of working with 2 routers at same time. Its a virtual machine. Network 1 192.168.1.0/24 ...
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438 views

Ubuntu 16.04 Multiple Network Adapters, Same Network

I need to configure a gateway PC working with Ubuntu 16.04 so that multiple LAN adapters (eth0,eht1,wlan0) communicate within one same network addressing scheme. How can such a configuration be made ...
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589 views

Can't install gns3,Err 502 bad gateway

I have Ubuntu 17.04 and I'm trying to install gns3 by using these commands: sudo add-apt-repository ppa:gns3/ppa Output: PPA for GNS3 and Supporting Packages. Please see http://www.gns3.com for ...
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How do I setup multiple static IP's on multiple NIC's with one gateway?

I'm using Ubuntu 16.04.3 LTS. Currently I have this in /etc/network/interfaces auto lo iface lo inet loopback auto eno1 inet static address 198.167.16.164 netmask 255.255.240.0 gateway ...
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370 views

Why there is a 0.0.0.0 gateway for eth0 if I only add one in the interface config?

In my interface config file, I only add one route for the 192.168.2.0, but when the machine is running, there is a 0.0.0.0 gateway for 192.168.2.0. How to fix this only using interface config? $ ...
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79 views

Gateway Problem

I'm facing this strange problem. I've a branch location connected with 2 ISPs on MPLS (See attached Image). The location have mixed OS PCs (Windows & Ubuntu, major chunk is of Ubuntu) Whenever ...
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343 views

Unable to use Ubuntu 17.4 as internet gateway

I am trying to setup an Ubuntu Desktop 17.04 virtual machine to act as a router/gateway for other VMs I have on an isolated (non internet connected) network. I followed directions from the following ...
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1answer
866 views

Ubuntu server 16.04 static and private ip [closed]

I have tried a few different combinations in /etc/network/interfaces I'm wanting to add a public ip and a private to my server but it's not wanting to accept both iface eno1 inet static address ...
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10k views

Share my VPN connection with other LAN users

I have a PC with one physical LAN adapter connecting to a VPN server. Is there a way i can setup a (virtual) gateway interface on that same LAN adapter in a way so the other devices on my network can ...
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1answer
312 views

Ubuntu as Gateway - Client PC no internet

Ubuntu configurations Ifconfig ens33 Link encap:Ethernet HWaddr 00:0c:29:0e:15:94 inet addr:192.168.1.129 Bcast:192.168.1.255 Mask:255.255.255.0 inet6 addr: fe80::2d58:...
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Gateways of interfaces NOT active

I 've configured two static interfaces which are active. For each interface I have configured a gateway. However these gateways do not show up in the active configuration (Webmin) or cli-command route....
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Two gateways on same network

My machine runs Ubuntu Server 16.04 and it has two NICs, eth0 and eth1, as shown in the network diagram. Its role was initially to route traffic from the 192.168.50.0/24 subnet to the 192.168.1.0/24 ...
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Ubuntu 16.04 Server Fresh Install - Can't ping gateway & no wifi network at all [duplicate]

I just did a fresh install of Ubuntu 16.04 on a desktop computer. During the installer, the auto network script failed so I configured it manually (entered my own IP, entered in the subnet mast, ...
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2answers
21k views

Route all traffic of a machine through another within a subnet?

I have two computers, both running ubuntu 12.04 64 bit. I need to route traffic of one computer through the other. computer A: 192.168.1.3 (eth0) computer B: 192.168.1.7 (eth0), 192.168.1.5 (eth1), ...
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21 views

is there a server installable portal capture software?

I ask this as all i can find online is router installation packages. such as chillispot. I would rather install this directly onto my gateway server than on a router. i also tried using another ...
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700 views

How to isolate subnet behind Ubuntu gateway?

I have the following set up: --> router X provided by my ISP - no admin access to it (LAN IP 192.168.5.1) --> network N1 with devices and PCs (DHCP clients of X - IPs 192.168.5.x) -->...
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3k views

How does Ubuntu determine the default route when multiple interfaces are defined?

I have an Ubuntu server (headless, Network Manager is not installed). It has two interfaces, eth0 and eth1. I have the following defined in /etc/network/interfaces: auto lo iface lo inet loopback ...