你配置中的 config dnsmasq 替换成这段试试
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config dnsmasq
option localise_queries '1'
option local '/lan/'
option domain 'lan'
option expandhosts '1'
option readethers '1'
option leasefile '/tmp/dhcp.leases'
option nonwildcard '1'
option localservice '1'
option ednspacket_max '1232'
option localuse '1'
option filter_aaaa '1'
option domainneeded '1'
option noresolv '1'
list server '127.0.0.1#7874'
option cachesize '0'
option rebind_protection '1'