[Dnsmasq-discuss] Using dnsmasq to issue IP addresses based on MAC address ranges

[Jeff Croft]

Hello --

I'm using dnsmasq v2.41 to issue addresses in two different networks.

What I want is for physical machines to be issued addresses in 172.16.0.0/16 and for VMware virtual machines to get 172.17.0.0/16 addresses. I've forced all the VMware instances to have MAC addresses which start with 00:50:56:00.

I'm using the following config lines:

dhcp-range=net:vmiphys,172.16.1.50,172.16.200.250,255.255.0.0,12h
dhcp-range=net:vmivirt,172.17.0.50,172.17.200.250,255.255.0.0,12h
dhcp-host=*:*:*:*:*:*,net:vmiphys
dhcp-host=00:50:56:00:*:*,net:vmivirt

which I had hoped would do what I described above.

What happens, however, is that any machine with a MAC address which does not match 00:50:56:00:*:* receives an address in the 172.16.0.0/16 network, but any machine matching 00:50:56:00:*:* causes dnsmasq to issue an error like this:

DHCPDISCOVER(eth0) 169.254.34.228 00:50:56:00:00:d7 no address available

and the virtual machine doesn't get an IP address.

Any suggestions?

Thanks much for some great software.

            Jeff Croft
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