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我就说有点印象,花了一刻钟认真看了下manpage。
man dnsmasq- --dhcp-sequential-ip
- Dnsmasq is designed to choose IP addresses for DHCP clients
- using a hash of the client's MAC address. This normally allows a
- client's address to remain stable long-term, even if the client
- sometimes allows its DHCP lease to expire. In this default mode
- IP addresses are distributed pseudo-randomly over the entire
- available address range. There are sometimes circumstances (typ‐
- ically server deployment) where it is more convenient to have IP
- addresses allocated sequentially, starting from the lowest
- available address, and setting this flag enables this mode. Note
- that in the sequential mode, clients which allow a lease to
- expire are much more likely to move IP address; for this reason
- it should not be generally used.
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