How To Enable IP Forwarding in Ubuntu Linux - YouTube
Defaultly any UNIX/Linux distributions will have IP Forwarding is disabled. As most of the peoples will not need IP Forwarding, but if we are setting up a Linux router/gateway, when you want your system to act as VPN server, and for sharing the internet connection. See the below steps for enable or disable IP forwarding in linux. How-To: Redirecting network traffic to a new IP using Dec 05, 2008 How to find your IP address in Linux | Opensource.com Feb 07, 2020
By default any modern Linux distributions will have IP Forwarding disabled.This is normally a good idea, as most peoples will not need IP Forwarding, but if we are setting up a Linux router/gateway or maybe a VPN server (pptp or ipsec) or just a plain dial-in server then we will need to enable forwarding.This can be done in several ways that I will present bellow.
A coworker claims that merely enabling IP_forwarding on a single homed Linux machine poses a security risk as he says it could then be used as a proxy. I can't think of how this would work, except maybe if another machine on the same LAN set it as a gateway.
How to implement ip forwarding in Linux - The Linux Juggernaut
May 11, 2011 iptables - IP forwarding on Linux - anything important to