openwrt ipv6 NAT设置（CR6608演示）

╩华夏***

一、环境检查
首先你的路由器固件要支持IPV6，且能获取到可用的IPV6地址

二、安装插件

安装nat6转发插件(7月13日的固件默认已安装好了，这步骤跳过）

opkg update
opkg install kmod-ipt-nat6

三、一键配置命令

将下面的命令粘贴到TTYD终端

1. echo "net.ipv6.conf.default.accept_ra=2" >> /etc/sysctl.conf
   
2. echo "net.ipv6.conf.all.accept_ra=2" >> /etc/sysctl.conf
   
3. 
   
4. uci set network.globals.ula_prefix="$(uci get network.globals.ula_prefix | sed 's/^./d/')"
   
5. uci commit network
   
6. uci set dhcp.lan.ra_default='1'
   
7. uci commit dhcp
   
8. 
   
9. touch /etc/hotplug.d/iface/99-ipv6
   
10. 
    
11. cat > /etc/hotplug.d/iface/99-ipv6 << EOF
    
12. #!/bin/sh
    
13. [ "\$ACTION" = ifup ] || exit 0
    
14. iface_dhcp=wan_6
    
15. iface_route=pppoe-wan
    
16. [ -z "\$iface_dhcp" -o "\$INTERFACE" = "\$iface_dhcp" ] || exit 0
    
17. 
    
18. ip6tables -t nat -I POSTROUTING -s \`uci get network.globals.ula_prefix\` -j MASQUERADE
    
19. gw=\$(ip -6 route show default | grep \$iface_route | sed 's/from [^ ]* //' | head -n1)
    
20. status=\$(ip -6 route add \$gw 2>&1)
    
21. logger -t IPv6 "Done: \$status"
    
22. EOF
    
23. /etc/init.d/network restart

复制代码

注意倒数第9和10行的接口按实际情况更改
如下图，我的都是wan

进入TTYD 输入改好的代码然后回车，等几十秒路由器网络重启完成，重新连接

四、状态检查

连接[color=var(--themecolor)]测试[url]http://test-ipv6.com/[/url]
[color=var(--themecolor)]速度测试[url]http://speed.neu6.edu.cn/[/url]

lovezh***

IPV6 nat 还不如不用，等着运营商更新吧

liao***

用中继方式直接把ipv6中继过来

╩华夏***

liaohcai 发表于 2021-9-29 20:16
用中继方式直接把ipv6中继过来

有些教程说中继的方式不稳定

liao***

╩华夏の鹰╩ 发表于 2021-9-30 00:55
有些教程说中继的方式不稳定

我在bilibili看到一则视频，他说好的固件中继ipv6是完美和稳定。《【老湿基】IPv6高级教程之完美中继》。

lyj***

Multiple packages (libgcc1 and libgcc1) providing same name marked HOLD or PREFER. Using latest.
Unknown package 'kmod-ipt-nat6'.
Collected errors:
* pkg_hash_check_unresolved: cannot find dependency kernel (= 5.4.150-1-fc07c47d7cd2b5d5d3866327c3410b2f) for kmod-nf-reject
* pkg_hash_check_unresolved: cannot find dependency kernel (= 5.4.150-1-fc07c47d7cd2b5d5d3866327c3410b2f) for kmod-nf-ipt
* pkg_hash_check_unresolved: cannot find dependency kernel (= 5.4.150-1-fc07c47d7cd2b5d5d3866327c3410b2f) for kmod-ipt-core
* pkg_hash_check_unresolved: cannot find dependency kernel (= 5.4.150-1-fc07c47d7cd2b5d5d3866327c3410b2f) for kmod-nf-conntrack
* pkg_hash_check_unresolved: cannot find dependency kernel (= 5.4.150-1-fc07c47d7cd2b5d5d3866327c3410b2f) for kmod-nf-conntrack6
* pkg_hash_check_unresolved: cannot find dependency kernel (= 5.4.150-1-fc07c47d7cd2b5d5d3866327c3410b2f) for kmod-nf-nat
* pkg_hash_check_unresolved: cannot find dependency kernel (= 5.4.150-1-fc07c47d7cd2b5d5d3866327c3410b2f) for kmod-nf-nat6
* pkg_hash_fetch_best_installation_candidate: Packages for kmod-nf-nat6 found, but incompatible with the architectures configured
* pkg_hash_check_unresolved: cannot find dependency kernel (= 5.4.150-1-fc07c47d7cd2b5d5d3866327c3410b2f) for kmod-ipt-conntrack
* pkg_hash_check_unresolved: cannot find dependency kernel (= 5.4.150-1-fc07c47d7cd2b5d5d3866327c3410b2f) for kmod-ipt-nat
* pkg_hash_check_unresolved: cannot find dependency kernel (= 5.4.150-1-fc07c47d7cd2b5d5d3866327c3410b2f) for kmod-nf-reject6
* pkg_hash_check_unresolved: cannot find dependency kernel (= 5.4.150-1-fc07c47d7cd2b5d5d3866327c3410b2f) for kmod-nf-ipt6
* pkg_hash_check_unresolved: cannot find dependency kernel (= 5.4.150-1-fc07c47d7cd2b5d5d3866327c3410b2f) for kmod-ip6tables
* pkg_hash_check_unresolved: cannot find dependency kernel (= 5.4.150-1-fc07c47d7cd2b5d5d3866327c3410b2f) for kmod-ipt-nat6
* pkg_hash_fetch_best_installation_candidate: Packages for kmod-ipt-nat6 found, but incompatible with the architectures configured
* opkg_install_cmd: Cannot install package kmod-ipt-nat6.

安装不了咋搞

lyj***

Multiple packages (libgcc1 and libgcc1) providing same name marked HOLD or PREFER. Using latest.
Unknown package 'kmod-ipt-nat6'.
Collected errors:
* pkg_hash_check_unresolved: cannot find dependency kernel (= 5.4.150-1-fc07c47d7cd2b5d5d3866327c3410b2f) for kmod-nf-reject
* pkg_hash_check_unresolved: cannot find dependency kernel (= 5.4.150-1-fc07c47d7cd2b5d5d3866327c3410b2f) for kmod-nf-ipt
* pkg_hash_check_unresolved: cannot find dependency kernel (= 5.4.150-1-fc07c47d7cd2b5d5d3866327c3410b2f) for kmod-ipt-core
* pkg_hash_check_unresolved: cannot find dependency kernel (= 5.4.150-1-fc07c47d7cd2b5d5d3866327c3410b2f) for kmod-nf-conntrack
* pkg_hash_check_unresolved: cannot find dependency kernel (= 5.4.150-1-fc07c47d7cd2b5d5d3866327c3410b2f) for kmod-nf-conntrack6
* pkg_hash_check_unresolved: cannot find dependency kernel (= 5.4.150-1-fc07c47d7cd2b5d5d3866327c3410b2f) for kmod-nf-nat
* pkg_hash_check_unresolved: cannot find dependency kernel (= 5.4.150-1-fc07c47d7cd2b5d5d3866327c3410b2f) for kmod-nf-nat6
* pkg_hash_fetch_best_installation_candidate: Packages for kmod-nf-nat6 found, but incompatible with the architectures configured
* pkg_hash_check_unresolved: cannot find dependency kernel (= 5.4.150-1-fc07c47d7cd2b5d5d3866327c3410b2f) for kmod-ipt-conntrack
* pkg_hash_check_unresolved: cannot find dependency kernel (= 5.4.150-1-fc07c47d7cd2b5d5d3866327c3410b2f) for kmod-ipt-nat
* pkg_hash_check_unresolved: cannot find dependency kernel (= 5.4.150-1-fc07c47d7cd2b5d5d3866327c3410b2f) for kmod-nf-reject6
* pkg_hash_check_unresolved: cannot find dependency kernel (= 5.4.150-1-fc07c47d7cd2b5d5d3866327c3410b2f) for kmod-nf-ipt6
* pkg_hash_check_unresolved: cannot find dependency kernel (= 5.4.150-1-fc07c47d7cd2b5d5d3866327c3410b2f) for kmod-ip6tables
* pkg_hash_check_unresolved: cannot find dependency kernel (= 5.4.150-1-fc07c47d7cd2b5d5d3866327c3410b2f) for kmod-ipt-nat6
* pkg_hash_fetch_best_installation_candidate: Packages for kmod-ipt-nat6 found, but incompatible with the architectures configured
* opkg_install_cmd: Cannot install package kmod-ipt-nat6.

安装不了咋搞

TS***

uci set network.globals.ula_prefix="$(uci get network.globals.ula_prefix | sed 's/^./d/')"
报错uci: Entry not found