Subclasses and Scope
Glenn Satchell
glenn.satchell at uniq.com.au
Wed Sep 21 14:19:25 UTC 2011
On 09/21/11 06:52, Michael Dahlberg wrote:
> I'm trying to configure my dhcpd server to provide different boot
> options to systems based on vendor options and MAC addresses. I would
> like most systems with a specific vendor-class-identifier to be given
> one tftp server, but another system with the same
> vendor-class-identifier and the MAC address 00:02:03:ab:cd:ef should
> be given a different tftp server. The relevant parts of the config
> file are listed below:
>
> class "engineering" {
> match if (option vendor-class-identifier="SimpleAsciiString");
> option root-path "server:/var/net/boot";
> filename "tftpboot.simple";
> }
>
> subclass "engineering" 1:00:02:03:ab:cd:ef {
> option root-path "anotherserver:/var/net/boot";
> filename "tftpboot.complex";
> }
>
> Assuming that the root-paths and filenames are correct, will these
> statements do what I'm trying to accomplish? If not, can you
> recommend a different method?
>
> Thanks,
> Mike
That subclass wopn't work because when you define the class you say
match something;
then in the subclass definition you have to list the value of the something.
eg \
class "engineering" {
match hardware;
}
subclass "engineering" 1:00:02:03:ab:cd:ef {
}
subclass "engineering" 1:00:02:03:04:04:06 {
}
In this case you can do a host statement for that mac address and add
the variables to that. host statement has higher preference than class.
If you created a second class for that mac address there are no
guarantees about the order the classes are evaluated.
host "engineering-special" {
hardware ethernet 0:02:03:ab:cd:ef;
option root-path "anotherserver:/var/net/boot";
filename "tftpboot.complex";
}
--
regards,
-glenn
--
Glenn Satchell | Miss 9: What do you
Uniq Advances Pty Ltd, Sydney Australia | do at work Dad?
mailto:glenn.satchell at uniq.com.au | Miss 6: He just
http://www.uniq.com.au tel:0409-458-580 | types random stuff.
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