背景

1. Docker中Host网络无法获取IPV6地址，无法侦听IPV6，故导致在公网无法正常访问容器内的资源（纯IPV6）。
2. 扒贴无数，并无很好的解决方案。这个方法虽然繁琐，但还算是有用吧。

工具

1. Entware
2. socat（Linux下的瑞士军刀）

过程

安装Entware

懒得汉化了。

Deploying Entware

1. Create a folder on your hdd (outside rootfs)

mkdir -p /volume1/@Entware/opt

2. Remove /opt and mount optware folder

Make sure that /opt folder is empty (Optware is not installed), we will remove /opt folder with its contents at this step.

rm -rf /opt
mkdir /opt
mount -o bind "/volume1/@Entware/opt" /opt

Note : if the bind command doesn't work, try to create a link instead :

ln -s /volume1/@Entware/opt/ /opt

3. Run install script depending on the processor (uname -m to know)

• for armv8 (aarch64) - Realtek RTD129x

wget -O - http://bin.entware.net/aarch64-k3.10/installer/generic.sh | /bin/sh

• for armv5

wget -O - http://bin.entware.net/armv5sf-k3.2/installer/generic.sh | /bin/sh

• for armv7

wget -O - http://bin.entware.net/armv7sf-k3.2/installer/generic.sh | /bin/sh

• for x64

wget -O - http://bin.entware.net/x64-k3.2/installer/generic.sh | /bin/sh

4. Create Autostart Task

Create a triggered user-defined task in Task Scheduler.

• Goto: DSM > Control Panel > Task Scheduler
• Create > Triggered Task > User Defined Script
  • General
    • Task: Entware
    • User: root
    • Event: Boot-up
    • Pretask: none
  • Task Settings
    • Run Command: (see bellow)

#!/bin/sh

# Mount/Start Entware
mkdir -p /opt
mount -o bind "/volume1/@Entware/opt" /opt
/opt/etc/init.d/rc.unslung start

# Add Entware Profile in Global Profile
if grep  -qF  '/opt/etc/profile' /etc/profile; then
	echo "Confirmed: Entware Profile in Global Profile"
else
	echo "Adding: Entware Profile in Global Profile"
cat >> /etc/profile <<"EOF"

# Load Entware Profile
. /opt/etc/profile
EOF
fi

# Update Entware List
/opt/bin/opkg update

6. Reboot your NAS.

安装socat

/opt/bin/opkg install socat

使用

进行转发测试

socat TCP6-LISTEN:1234,reuseaddr,fork TCP4:127.0.0.1:6800 &

1. 添加计划任务

虽然比较麻烦，还好达成了目的。值得注意的是最后命令中两个端口不能一致。

参考

• 安装Entware

• 使用socat进行端口转发