A router is a device that forwards data packets between computer networks, creating an overlay internetwork

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How to set up Ubuntu 14.04 as a gateway using 1 NIC with 2 IP addresses on different subnets?

I have an Ubuntu 14.04 server with one NIC. The MAC address on this NIC is assigned (by the gateway) one IP (X.X.X.100) in one subnet (X.X.X.0/24), with the gateway being in the same subnet (X.X.X.1), ...
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50 views

PC to router to router, what's the IP of the first router?

Tl;dr: PC connect do router that is connected to the service provider's router. I can access the service provider router (192.168.1.1) but I can't connect to my own router. I live in a rented with a ...
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73 views

Multicast WCCP with Squid + multiple routers

Currently I'm building a lab with multiple routers and two Ubuntu servers as proxies. Here's the topology: What is happening right now is that the traffic is already redirected to the proxy, but ...
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40 views

SSH and ping times out, router setting?

I have a somewhat strange problem. SSH and ping times out. tracepath and wget works. Both SSH and ping works when I use a VPN-connection(trough a different server). What could this be? Is it ...
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311 views

How to share my wifi to a router via wired connection?

I'm currently getting a poor connection from my main WiFi router with my phone and I'm wondering is it possible to share this WiFi connection from Ubuntu to another router via Ethernet cable? The ...
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17 views

linksys AE6200 external HDD

I have Ubuntu 14.04, a Linksys AE6200 router that has a USB port. I have connected a HDD WD My Passport 2T directly to my PC via USB and Ubuntu could see that drive. When I connect it to the router ...
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0answers
52 views

Can not connect to one wifi, but to others can

I can not connect to my wifi network, but I tried to other wifis and it worked fine. The network should be ok as I tried with other laptop and worked like a charm. In the past I could connect to it ...
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117 views

14.04 Atheros AR5B93 reaver-wps Failed?

http://paste.ubuntu.com/12321843/ what is wrong MY test router (dlink) WPA code " WARNING Failed to associate with XX:XX:XX:XX:XX:XX (ESSID: (null))"
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1answer
74 views

What does this terminal message mean?

I can't get internet on one of my computers. It says connected. I had this similar problem on my other computer and I used this command to fix it: ip route add default via defaultgatewayip It ...
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2answers
381 views

How to setup PC router to monitor LAN traffic?

I'm sure I can turn a pc or a raspberry pi into a router. I'm just wondering if I can use this router to monitor traffic? I mean say I have four terminal devices owned by different person in my home,...
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1answer
317 views

iptables set-mark doesn't work

My machine has two network interfaces, one is wired (eth0) and the other one is wireless (wlan0). The wired one cannot connect to any external NTP server because there is a firewall outside. The ...
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1answer
3k views

How to change the default TTL of TCP/IP packets?

I need to change the default TTL of TCP/IP packets sent from my Ubuntu computer. I found the solution for Windows: To make reg-file: Windows Registry Editor Version 5.00 [HKEY_LOCAL_MACHINE\SYSTEM\...
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1answer
38 views

Accessing router with Ubuntu client from remote

Is it possible to use my router Dlink-655 as a (gate)way to watch Netflix when travelling abroad? In other words, can I connect to the internet abroad and from there to my router and use my router's ...
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1answer
223 views

Routing internet protocol with either bird or quagga packages

I would like to advertise routes with RIP (either version 1 or 2). In the repositories I see three packages. bird: supports IPv4 and IPv6 versions of BGP, OSPF, and RIP. quagga: supports IPv4 and ...
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77 views

How do I change my wifi connection from mode 11b to 11n?

My wireless adapter in my laptop always connects in 11b mode, which is much slower than 11n mode. I want it to switch to 11n but couldn't find anywhere on how to do it. How do I do it? If it is not ...
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1answer
226 views

ip forwarding between two LANs

I have 1 server which has 3 NIcs: Connected to the Internet Connected to LAN1 (10.0.0.0/24) Connected to LAN2 (192.168.0.0/28) LAN2 has a server that works on a port, say 4444. How can I forward ...
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66 views

net ISP balance

i am trying for sometime now to figure how to configure the [enter link description here][1] [1]: http://lstein.github.io/Net-ISP-Balance/ my ISPs are on eth1 and eth2. my LAN is on eth0. i have ...
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1answer
654 views

How can I see a website running on Apache installed on my PC from another device connected to the same ADSL router?

I am not so into networking and I have the following problem. On my Ubuntu system I have installed Apache web server on which run some web sites. So now to access to these web site I need to open an ...
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2answers
469 views

how many ethernet cards ?

I want to use my computer as a router. So I checked how many ethernet card I have running : lspci | grep -i net. I got a single line ? Does it mean that I have only one "eth0" ethernet card ?
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1answer
78 views

Ubuntu wifi problems with new router

I am using Ubuntu 14.04 LTS and have recently installed a new TP-LINK TL-WR841N Wireless N router at my home. Since then websites such as Facebook, Yahoo, Stackoverflow itself are not properly opening....
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1answer
43 views

how to add ubuntu router's network to a wireless router to expand its network

I have configured an ubuntu server to become a outer with dhcp functionalities and I saw this post on connecting one router to another to expand its network. My ubuntu router is on a vmware and I was ...
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1answer
58 views

Can I use IPv6 connectivity through openVPN if my router does not support it?

Can I use IPv6 connectivity through openVPN if my router and my ISP does not support it but my openVPN server does?
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1answer
506 views

Can't access my router

192.169.1.1 or 192.168.1.254 is not working. Neither from windows. I have a custom IP. I have tried with auto IP and when I type this IP in the address bar I connect to someone else's router because ...
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1answer
59 views

Firewall rules not working for network

I have configured my ubuntu server to be a router and firewall. It has dhcp functionalities and it gives ip addresses to my other two computers. There is an implicit deny in the network. However the ...
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1answer
586 views

IPtables command to block specific port for certain ip

I want to block certain services such as ftp, telnet, http for a certain ip address. What command will I execute in order to achieve this. The only command I have tried is sudo iptables -A INPUT -s ...
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1answer
76 views

Ubuntu server router network connections

Is it possible to make the ubuntu router part of the network connections so my device can connect to it and the ubuntu router can assign an ip address via dhcp. I have already configured my ubuntu ...
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0answers
62 views

How to set custom DNS for all users using Ubuntu as Wifi Hotspot?

I use my laptop as wifi hotspot with an "ad-hoc network" instead of a normal wifi router. The question is: how can i set custom dns for all the hotspot's user so i can create new domains that will ...
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1answer
459 views

My ubuntu sony laptop connects to wifi but can't load any data

New Problem I am now able to access the internet but, when I connect to netgear router NO data is recieved and I can't also ping my router.This does not happen with any other router like DLINK or my ...
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1answer
951 views

Ubuntu 14.04 Qualcomm Atheros AR8151 v2.0 Gigabit Ethernet [1969:1083] (rev c0) can't connect

Why can't I connect to my router via simple LAN cable? I just want to access my router and configure it, but my Ubuntu keeps attempting to make a wired connection and it can't. I tried switching my Wi-...
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1answer
512 views

Can private IP address be the same as public IP address?

I checked my public ip address at http://whatismyipaddress.com, it showed me 137.189.34.166. When I typed ifconfig in terminal it showed me my private ip address is 137.189.34.166, too. Does that mean ...
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162 views

Try DHCP first, if it fails assign static address and use the machine as a DHCP server itself

As the title says, I have a tiny screenless Ubuntu server that I move around, that has two different behaviors and needs to adapt automatically, that is, without any human intervention, at bootstrap: ...
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4answers
11k views

How to show (just) the IP address of my router?

What command can I run to get just the IP address of my router? With this command I should have only IP of my router and not, for example, the whole routing table (as when I run route -n).
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256 views

Questions about building a native IPv6 router/firewall

My ISP has kindly handed me a /64 prefix, and I'm building an Ubuntu router, as most of my existing equipment is too old to support IPv6. Using various articles, I've managed to get it mostly working,...
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1answer
259 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). It'...
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1answer
559 views

ISC DHCP Different DNS Server For Different Client OS

Is it possible to configure isc-dhcp in a way that it can send different DNS server addresses to different clients in the network? Let say I have some Macs, PCs with Linux and Windows in the network....
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1answer
41 views

Universal Way to Know Router's Address

How can I know what the router's address is when I am on multiple interface? I know by using netstat -rn I can have the dominate interface's gateway, which is the router's address. But what about ...
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1answer
71 views

How to ssh if not router administrator [closed]

I have my PC connected to the internet behind a router and want to connect via ssh to another PC online that is behind another router. My problem is that I am not the administrator neither routers and ...
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1answer
15k 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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1answer
482 views

Setup Linksys E900 Ubuntu 12.04

I just bought a Linksys E900 and I am unable to access the Admin Login page over http://192.168.1.1 Instead I see this page There is no way I could login ad Admin and Setup the router. Can ...
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0answers
167 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
364 views

How to access the router UI when it's IP address says “the webpage is not available”? Its not just plug and play as in windows?

I have some TPLink access points (and a travel router that can work as an access point), and want to configure them in order to extend my wifi signal. In windows I just plugged them into the ...
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1answer
105 views

14.04 Ethernet works only directly through modem

After searching through all the help suggestions, I still cannot find a direct answer to this: I recently bought an empty Lenovo Thinkserver and successfully installed Ubuntu 14.04 via a live USB. ...
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3answers
792 views

how do i make my website accessible to the internet without a static ip and from a virtual machine?

I have windows 8 host and i have installed ubuntu 14.10 server as a virtual machine in vmware. i have installed LAMP server and i am trying to host a website from it. i have created a virtual host. my ...
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1answer
992 views

Connect to two networks simultaneously

I want to connect to two networks simultaneously using the Ethernet and in-built WiFi or to two WiFi networks by installing an additional WiFi adapter. My requirement: I have two sets of devices (...
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1answer
570 views

Make router use Dns Server of PC inside Lan

I am connected to internet via a TP-Link router. Router uses DNS servers provided by ISP. I have set up bind DNS server inside my PC and I want router to use DNS server on my PC instead of ISP's. ...
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37 views

How to restrict wireless networks seen on my ubuntu machines

I have 2 wireless routers (ground floor - c1, first floor - c2). I would like the Ubuntu machines in my LAN to see only the above wireless routers (c1, c2) and not routers outside my building (say the ...
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2answers
1k 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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2answers
106 views

Dlink dir-615 routerwith ubuntu 11.10 [closed]

What instructions are available for configuring a Dlink dir-615 router with ubuntu11.10. I can access the router website and get a wired connection message but firefox cannot find the internet
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326 views

Ubuntu Server 14.04 LTS + ASUS AC68U router trafic redirection / filtering / remove ads

I have just added a HP Gen8 Microsever to my lan set-up and I'm wondering if there's a possibility to set it up in such a way that http traffic is automatically filtered for ads. Details on the set-...
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1answer
217 views

dig doesn't work in Ubuntu 14.10, works in 12.04 in the same network

I'm having an issue when trying to use dig at one of my computers running Ubuntu 14.10 Desktop 64 bit. The same works in Ubuntu 12.04 both at separate physical machine and running inside VMWare (...