2

Is it possible to have two DHCP Server on the same subnet for address two range of IP? Is it possible to configure one of this DHCP server to serve only a certain range of mac address ?

for example wanna to have the main DHCP Server that serve the range 192.168.1.50 --> 100, and another DHCP with also a TFTP and PXE that server range 192.168.1.220 ---> 250 that accept request only from a given list of range of mac addres ... Cani do this?

Is better to have only one DHCP Server on subnet and another TFTP/PXE Server, and then address the request from a list of given MAc address to this TFTP/PXE Server?

What's the best solution for assigning a range of IP and eventually a TFTP/PXE based on list of mac address ? Is it possible?

I use Linux and dhcp3-server...

Thanks.

2

You can do that in isc dhcpd using subclasses and pools. The man page has detailed examples.

   class "allocation-class-1" {
     match pick-first-value (option dhcp-client-identifier, hardware);
   }

   class "allocation-class-2" {
     match pick-first-value (option dhcp-client-identifier, hardware);
     option root-path "samsara:/var/diskless/alphapc";
     filename "/tftpboot/netbsd.alphapc-diskless";
   }

   subclass "allocation-class-1" 1:8:0:2b:4c:39:ad;
   subclass "allocation-class-2" 1:8:0:2b:a9:cc:e3;
   subclass "allocation-class-1" 1:0:0:c4:aa:29:44;

   subnet 10.0.0.0 netmask 255.255.255.0 {
     pool {
       allow members of "allocation-class-1";
       range 10.0.0.11 10.0.0.50;
     }
     pool {
       allow members of "allocation-class-2";
       range 10.0.0.51 10.0.0.100;
     }
   }
  • Therefore is better use a single DHCP server insted of two ? – aleroot Aug 19 '10 at 7:23
  • You can do it any way because you should be able to prevent the leases from clashing. But i would go with one if not using failover just for the ease of management. – topdog Aug 19 '10 at 7:59

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