how to config class

[Stier, Matthew]

Order?

As written, both classes are true, so the later one overwrites the settings of the prior one.

From: dhcp-users-bounces+matthew.stier=us.fujitsu.com at lists.isc.org [mailto:dhcp-users-bounces+matthew.stier=us.fujitsu.com at lists.isc.org] On Behalf Of Julie Xu
Sent: Thursday, November 21, 2013 1:21 AM
To: dhcp list
Subject: how to config class

hi


I need most subnets PXE server ip address as 10.1.1.10, and only subnet 10.2.2.0/24 need PXE server address as 10.2.2.10

How can I write the class statement using two classes. I have tried netboot from my laptop on ip 10.2.2.100, but, I still get server-identifier 10.1.1.10.

could anyone advice what I did wrong?

below is my configure:

class "vlan418RIS" {
    #  This is only for subnet 10.2.2.0/24 subnet
    # this dhcp server is on different subnet, the address 10.2.2.1 is relay agent - router
    match if ( binary-to-ascii(10,8, ".", packet(24,4)) = "10.2.2.1" and
             substring( option vendor-class-identifier, 0, 9 ) = "PXEClient" );
    option vendor-class-identifier "PXEClient";
    server-identifier 10.2.2.10;
  }

class "MicrosoftRIS" {
    #  This is default, all my subnets using this class, except 10.2.2.0/24
    match if substring( option vendor-class-identifier, 0, 9 ) = "PXEClient";
    option vendor-class-identifier "PXEClient";
    server-identifier 10.1.1.10;
  }


    subnet 10.2.2.0 netmask 255.255.255.0 {
        option routers 10.2.2.1;
        option broadcast-address 10.2.2.255;
    }

Any comments will be appreciated

Thanks in advance

julie






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