openwrt / odhcpd

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router: reduce dns lifetime to 2x maximum interval #87

Closed kesslerm closed 6 years ago

kesslerm commented 8 years ago

RFC6106 states that the lifetime of the RDNSS and DNSSL options SHOULD be bounded as follows: MaxRtrAdvInterval <= Lifetime <= 2*MaxRtrAdvInterval.

Choose the upper end of this interval.