[Dnsmasq-discuss] DHCP - multiple ranges on the same interface

[Mark Wiater]

Hello,

I'm hoping you can help guide me in the right direction with this.

I've got a situation where i need to use the dhcp-vendorclass option...

I want to reserve a small block of addresses for those hosts who present
a specific vendor id, all others get an address out of the pool without
an associated network id.

This is the relevant configuration:

dhcp-range=test,172.16.1.4,172.16.1.15,1h

dhcp-range=172.16.1.32,172.16.1.199,12h
dhcp-vendorclass=test,vendor.class.identifier
dhcp-option=test,176,opt1=10.0.0.50,opt2=1719,opt3=10.0.0.49
dhcp-option=7,172.16.1.1


What I'm finding is that a host who doesn't present a vendor class
identifier at all is getting an address in the TEST network id range.

For what it's worth, I've also found that I need to have the whole
string 'vendor.class.identifier' configured, else dnsmasq will not
assign an IP in the reserved space.

One more data point, the host that is getting the address in the
reserved space is setting option 50 with ip address 172.16.1.13, is it
possible to tell dnsmasq to ignore hosts that request a specific
address?

I'm using 2.16.

thanks

Mark