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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Is it possible to define a fallback gateway server?

I'm using iptables to implement forwarding on one server, that is support to forward traffic from an internal network to the internet (tutorial: http://www.revsys.com/writings/quicktips/nat.html) On ...
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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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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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Forwarding specific traffic to another LAN

There's a LAN of about 40 computers all running Ubuntu 15.04. There are two servers, both Ubuntu 15.04. One of the servers will act as a SVN repo server and other as a firewall-and-transparent-proxy ...
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IPtables Config to Passthrough Internet 16.04

I am struggling to finish the config on my Ubuntu 16.04 fileserver to pass on the internet connection to my HTPC. See the network layout below: [Internet] <--> [DHCP Router] <--> ...
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Problem routing between wireless and wired nic

I have a complicated network setup and I'm searching for advice on a partial problem. My Ubuntu server has a wireless NIC (wlan0) and a wired NIC (eth0). I want to connect a wired subnet to eth0 and ...
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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 ...