IP forwarding also known as Internet routing enables one workstation to sit on two LANs and to act as a gateway forwarding IP packets from one LAN to another.

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HTTP request using IPtables doesn't work for captive portal!

I am trying to make a simulation of a captive portal on 3 virtual machines (VM Ware) for my school project this week. Setup 1 = Ubuntu client 2 = Ubuntu server (router) 3 = Ubuntu server (captive ...
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Writing exceptions in ufw to the default forwarding policy

I've tried setting DEFAULT_FORWARD_POLICY in /etc/default/ufw to both REJECT and ACCEPT and then writing rules to create exceptions to the default forward policy. No matter what I do, it appears to ...
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126 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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361 views

Virtualbox Server/Client topology

I have Ubuntu 14.04 desktop machine that VirtualBox installed on it. I make two virtual machines, one Ubuntu server, the other is Lubuntu client. The default setting allow me to get Internet from ...
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how to forward ethernet internet from ubuntu pc via wifi stick to windows 8 laptop

This is my setup: Ubuntu PC connected via Ethernet connection to a LAN that has internet connection has a WIFI stick, (the router does not have WIFI support) Windows 8 Laptop with ONLY WIFI (no ...
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Shorewall IP Forwarding Problems in 12.04 LTS

Internet connectivity through my 12.04 LTS shorewall box is spotty at best. Ping works both locally and to the internet with no dropped packets (from both the box itself and internal LAN). HTTP ...
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3k views

Internet connection sharing without Network Manager

I followed these instructions for setting up a shared internet connection with iptables. Specifically, I: Added a network interface for my second NIC in /etc/network/interfaces like so: auto eth1 ...
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How can I set my linux box as a router to forward ip packets?

I am doing a network experiment about ip packet forwarding, but I don't know why it does work. I have a linux machine with two network interfaces, eth0 and eth1 both with static IP address (eth0: ...
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IP forwarding not working in Ubuntu 12.04 Server

I'm having trouble getting IP forwarding going in Ubuntu 12.04 server with UFW. I'm trying to get OpenVPN working. I have two interfaces, eth0 and tun0, and they can't ping each other. I've made the ...
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Linux bridge (brctl) doesn't forward IP-packets when router is one of the bridge endpoints

I have set up a brctl bridge on Ubuntu with the following deployment: Cisco router - > Linux bridge - > client computer The bridge forwards the following packets types: ARP,STP, but doesn't forward ...
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How to forward an Internet connection to another network?

Can somebody please make a short & sweet tutorial telling how to forward an Internet connection to different network interfaces in Ubuntu...? This is the idea: I'm using a 3G usb modem to get ...
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How to configure UFW to allow IP Forwarding?

I have UFW, OpenVPN and Virtualbox installed on my home server. I have a host-only network for my virtual machine guests (vboxnet0) set up with the IP range 10.0.1.0, and another IP range of 10.0.0.0 ...