allow incoming ipv6 connection (from public network) for Clash.Meta tun mode

[Binly42]

currently, it is known that global ipv6 would not work under Clash.Meta tun mode in default

one workaround is about the inet6-address (well, I do not know much about how and why, however that works anyway ~

in clash.verge, might use the profile script like:

function main(params) {
    const y = params

    const tun = y['tun'] || {}
    delete      y['tun']

    tun['inet6-address'] = null

    return {
        ...y,
        tun,
    }
}

---

NOTE for chinese:

• 如果 光猫路由器ufw等的防火墙啥的 都已经关了, 但 电脑的ipv6地址 依然还是 '能被公网ping通,mtr啥的也没问题,但是tcp就始终还是不行,ipw.cn等的测试也失败' 的话, 可能就是这个原因了, 太难了
• 实测 广东移动UNG220Z光猫拨号 + tplink的XDR5410路由器有线中继(应该就等价于桥接吧) + gram13z990 的这个搭配是可以 公网ipv6 的
  • (之前光猫桥接用路由器拨号死活不行,不知道是否当时漏了关 Clash.Meta的tun , 有空再试

[Binly42]

a maybe related issue: MetaCubeX/mihomo#449