nevermind :-) I ended up finding out from the openwrt forum post <https://forum.openwrt.org/t/dhcp-being-stubborn-keep-getting-wrong-subnet-ip-even-with-a-static-lease-set-up/171987/13> i made that the cause of this ended up being me trying to use dhcp-option-force in the multi-instance deployment vs the single one.. apologies for the noise!
On Tue, 19 Sept 2023 at 14:24, AleksM <a+dnsm...@alek.cx> wrote: > Hi all, > > I'm running on OpenWRT (SNAPSHOT r23935+13-c1206675a4) which has > installed dnsmasq 2.89 and my client is a macbook running MacOS 12.3.1 and I > recently switched from a single dnsmasq instance to a multi-instance dnsmasq > setup (because i wanted a different subdomain name given for the different > networks i have dnsmasq listen on and that was the approach suggested in > openwrt forum), > > But when i performed this change, i found out (after many days of > troubleshooting) that the dhcp response no longer contained a subnet-mask > field (which was causing my client to use the default /16 for a classful > CIDR of that address space, which caused connectivity issues that were > hilariously baffling at first). > > Is there some bug here, or am I doing something wrong? > > Attaching both the single-instance dnsmasq.conf (working) and the > DHCPOFFER response as well as the offending instance in the multi-instance > dnsmasq.conf (broken) and the DHCPOFFER response, where the subnet-mask > option is omitted (despite me attempting to add it as an extra DHCPOPTION > #1 even!) > > Any advice or anything else to look at? > > Warm regards, > Aleks >
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