[Dnsmasq-discuss] Multiple MACs and single IP
simon at thekelleys.org.uk
Sun Feb 7 20:30:52 GMT 2010
David Kovalsky wrote:
> I'd like to suggest a feature to dnsmasq for the DHCP functionality.
> The ability to have same IP address for multiple MAC addresses.
> My goal is to be able to have same IP for both my wifi and wired
> connection so I can switch back and forth without losing connections.
> My setup and more info is described in the openwrt bug tracker:
> Does this sound interesting to others?
It's already supported. The crucial thing to understand is that if
dnsmasq leases an IP address to MAC-address-1, it can't normally break
that promise and lease it to MAC-address-2 whilst the lease is valid.
Hence when MAC-address-2 turns up, it gets a pool address instead.
You can explicitly give dnsmasq permission to break the promise by
putting both addresses in the _same_ dhcp-host line:
You probably need to go back to oprnwrt and get them to enhance the GUI
system to support this.
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