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能否在多个本地获取的ipv6地址中优先选择mac地址生产的那个 #74

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CanvasQAQ opened this issue Feb 19, 2023 · 0 comments

CanvasQAQ commented Feb 19, 2023

内网设备的ipv6地址，
前半部分是ipv6前缀，是运营商分配的。重拨后会变化。
后半部分，如果不是eui64，就是随机生成的，也会变。如果是eui64，则与mac地址相关，不会变化，除非换网卡。

openwrt 设置防火墙的时候，比较方便的方法是找到对应机器的后半部分ipv6(固定不动)，然后利用掩码进行放行，现在的ddns会设置为第一个，如果ipv6 变化，防火墙规则不能随之切换

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