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Setup IPv6 NAT on OpenWRT Router

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[系统(linux) 所属分类 系统(linux) | 发布者 店小二04 | 时间 2016 | 作者 红领巾 ] 0人收藏点击收藏
Introduction

This tutorial is a HowTo for setting up IPv6 NAT on OpenWRT router.

The information of the environment is listed below.

Network Environment:China Education and Research Network Center with dual stack IPv6

Network Device: NETGEAR R6100 (128M RAM)

Firmware Version:OpenWrt Chaos Calmer 15.05

Install Dependencies for OpenWRT

Login to OpenWRT router via SSH and run following commands:

opkg update
opkg install ip6tables
opkg install kmod-ipt-nat6
opkg install iputils-tracepath6 Setup IPv6 for Local-area Network

Edit /etc/config/network, and add following lines in config interface 'lan' :

option ip6addr 'fc00:192:168:113::1/64'

Remove following lines if exists:

option ula_prefix [IP v6 Address here]

Edit /etc/config/dhcp , and changethe content in config dhcp 'lan' as follows:

config dhcp 'lan'
option interface 'lan'
option start '100'
option limit '150'
option leasetime '12h'
option dhcpv6 'server'
option ra 'server'
option ra_management '1'
option ra_default '1'
option ndp 'hybrid'
list dns '2001:4860:4860::8888'
list dns '2001:4860:4860::8844' Setup Gateway for IPv6 Network

Add following lines to /etc/firewall.user for forwarding IPv6 traffic:

ip6tables -t nat -A POSTROUTING -o $(uci -q get network.wan6.ifname) -j MASQUERADE

Setup up IPv6 gateway by creating file in /etc/hotplug.d/iface/90-ipv6 and adding following lines to the file:

#!/bin/sh
[ "$ACTION" = ifup ] || exit 0
[ "$INTERFACE" = wan6 ] && {
route -A inet6 add ::/0 gw $(tracepath6 -n tv.byr.cn | grep ' 1: ' | awk 'NR==1 {print $2}') dev $(uci -q get network.wan6.ifname)
}

Then, add execute permission to this file:

chmod 755 /etc/hotplug.d/iface/90-ipv6 Complete Setup

Finishing setting up by restating your router. Then you'll get IPv6 address in your computer.


Setup IPv6 NAT on OpenWRT Router

Enjoy!

Reference https://wiki.openwrt.org/doc/howto/ipv6 http://blog.iopsl.com/ipv6-nat-with-openwrt-router/ http://blog.csdn.net/cod1ng/article/details/45421025 https://techo.io/topic/82/openwrt-ipv6-nat-%E9%85%8D%E7%BD%AE

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