[Dnsmasq-discuss] Reserved IP Addresses for Specific DHCP Clients without a Connection to the Subnet

[wkitty42 at gmail.com]

On 10/26/22 8:34 PM, Rich Otero via Dnsmasq-discuss wrote:
> In this new config, rack7-pdu1 does receive DHCP responses from dnsmasq and it 
> gets a lease. It's just the /wrong/ lease, one from the DHCP pool, not the 
> reserved IP address that we expect it to get.

is it possible that offering leases reserved by MAC don't work across network 
segments? AFAIK, MAC addresses only travel within the current segment... once 
the traffic crosses a segment boundary, the MAC in the packet is replaced with 
the MAC of the boundary device... or am i remembering some ancient thing that no 
longer applies?

i also don't recall seeing anything about DHCP-passthrough, DHCP-proxy, or 
similar in your original post... could it be that one of these is needed to 
facilitate this change so the address assignment can be made based on the MAC?

just a couple of pre-c0ffee spitballs 5 minutes after wakeup...

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