#!/bin/sh # # Partial IPTABLES config to enable simple IP forwarding and Masquerading # v0.61 # # NOTE: The following is an example to allow only IP Masquerading for the # 192.168.0.2 and 192.168.0.8 machines with a 255.255.255.0 or a # "/24" subnet mask connecting to the Internet on interface eth0.
If you have iptables installed on 10.0.0.132, I think this will be pretty straightforward: iptables -t nat -A PREROUTING -j DNAT -d 10.0.0.132 -p tcp --dport 29418 --to 10.0.0.133 This says to send traffic coming in to 10.0.0.132 on port 29418 over to 10.0.0.133 instead, on the same port, prior to any other routing that 10.0.0.132 might try to do. How to Write iptables Rules for IPv6 - Linux.com Aug 03, 2017 How To Masquerade On Linux (Internet Connection Sharing) iptables -t nat -X iptables -t mangle -X. Now it's time to save the iptables rules so type: service iptables save service iptables restart. Now all rules and chains have been cleared! Check it in /etc/sysconfig/iptables which has all default rules set to accept. Now open /etc/rc.d/rc.local and insert the line: echo "1" > /proc/sys/net/ipv4/ip Configuring IP Forwarding Policies
In other words, iptables is a tool used to manage Linux firewall rules. Iptables should come with all Linux distributions. Linux Router Configuration. Our CentOS server has 2 network cards configured as below: eth0: external from eth1’s perspective network, configured with a static IP address 10.10.1.20,
Port Forwarding Using iptables - SysTutorials Dec 28, 2019
# iptables -I INPUT -p udp --dport 67 -i net0 -j ACCEPT # iptables -I INPUT -p udp --dport 53 -s 192.168.123.0/24 -j ACCEPT # iptables -I INPUT -p tcp --dport 53 -s 192.168.123.0/24 -j ACCEPT If you are not planing to use this setup regularly, you can manually add an IP to each client instead. Manually adding an IP
How to enable IP Forwarding in Linux · MD/Blog Aug 01, 2006 How To Set Up a Firewall Using Iptables on Ubuntu 14.04