分享一个 OpenWrt IPv6 的配置

配置

修改 /etc/config/dhcp

config dhcp 'lan'
	option interface 'lan'
	option start '100'
	option limit '150'
	option leasetime '12h'
	option ra_management '1'
	option ra 'hybrid'
	option dhcpv6 'hybrid'
	option ndp 'hybrid'

config dhcp 'wan6'
	option interface 'wan6'
	option dhcpv6 'hybrid'
	option ra 'hybrid'
	option ndp 'hybrid'
	option master '1'    # 这里 wan6 配置 master

上面配置中的 lan 部分，可以通过 luci web 页面配置，配置如下：

修改配置完成后重启网络服务 /etc/init.d/network restart 即可在lan侧获得 IPv6 地址

如上配置IPv6 混合模式/也可以配成中继模式（relay）。
注：此时光猫没有做任何修改，还是NAT 路由模式，并没有要求改成桥接！

环境

1. OpenWrt 路由器

root@FriendlyWrt:/etc/config# cat /etc/os-release 
NAME="OpenWrt"
VERSION="19.07.1"
ID="openwrt"
ID_LIKE="lede openwrt"
PRETTY_NAME="OpenWrt 19.07.1"
VERSION_ID="19.07.1"
HOME_URL="https://openwrt.org/"
BUG_URL="https://bugs.openwrt.org/"
SUPPORT_URL="https://forum.openwrt.org/"
BUILD_ID="r10911-c155900f66"
OPENWRT_BOARD="rockchip-rk3328/generic"
OPENWRT_ARCH="aarch64_cortex-a53"
OPENWRT_TAINTS="no-all"
OPENWRT_DEVICE_MANUFACTURER="OpenWrt"
OPENWRT_DEVICE_MANUFACTURER_URL="https://openwrt.org/"
OPENWRT_DEVICE_PRODUCT="Generic"
OPENWRT_DEVICE_REVISION="v0"
OPENWRT_RELEASE="OpenWrt 19.07.1 r10911-c155900f66"
root@FriendlyWrt:/etc/config# 

2. OpenWrt 路由 wan 口

eth0      Link encap:Ethernet  HWaddr 0A:E8:68:C2:40:98  
          inet addr:192.168.1.2  Bcast:192.168.1.255  Mask:255.255.255.0
          inet6 addr: 2409:8a31:6d1:68b0:8e8:68ff:fec2:4098/64 Scope:Global
          inet6 addr: 2409:8a31:6d1:68b0:ae8:68ff:fec2:4098/128 Scope:Global
          inet6 addr: fe80::8e8:68ff:fec2:4098/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:1192037 errors:0 dropped:1 overruns:0 frame:0
          TX packets:710177 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:1401239337 (1.3 GiB)  TX bytes:254127234 (242.3 MiB)
          Interrupt:28 

3. LAN 下PC信息

[lester lester]# cat /etc/os-release 
NAME="Manjaro Linux"
ID=manjaro
ID_LIKE=arch
BUILD_ID=rolling
PRETTY_NAME="Manjaro Linux"
ANSI_COLOR="32;1;24;144;200"
HOME_URL="https://manjaro.org/"
DOCUMENTATION_URL="https://wiki.manjaro.org/"
SUPPORT_URL="https://manjaro.org/"
BUG_REPORT_URL="https://bugs.manjaro.org/"
LOGO=manjarolinux
[lester lester]# 

4. PC 网卡信息

wlp10s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 10.0.0.120  netmask 255.0.0.0  broadcast 10.255.255.255
        inet6 2409:8a31:6d1:68b0:65a7:8d57:2055:99fa  prefixlen 64  scopeid 0x0<global>
        inet6 fe80::24ba:e920:bad:43be  prefixlen 64  scopeid 0x20<link>
        ether b4:b6:76:19:9b:64  txqueuelen 1000  (Ethernet)
        RX packets 122635  bytes 113290495 (108.0 MiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 102489  bytes 43813224 (41.7 MiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

[lester lester]# ping 240c::6666
PING 240c::6666(240c::6666) 56 比特的数据
64 比特，来自 240c::6666: icmp_seq=1 ttl=54 时间=240 毫秒
64 比特，来自 240c::6666: icmp_seq=2 ttl=54 时间=17.6 毫秒
^C
--- 240c::6666 ping 统计 ---
已发送 2 个包， 已接收 2 个包, 0% packet loss, time 1000ms
rtt min/avg/max/mdev = 17.606/129.016/240.427/111.410 ms
[lester lester]#