Wildcard hardware address syntax

[HAWKER, Dan]

HAWKER, Dan wrote:

>># Class to match vmware MAC addresses
>>class "vmware" {
>>	match if substring (hardware,1 ,5) = 00:0c:29;
>>	}

>Have you tried substring (hardware,1 ,3) ?

>5 bytes is never going to match 3 bytes ! You also start at byte 1 
>(the second byte) and byte 0 is the hardware type.

>Simon


Hi Simon,

Thanks for the reply. No, I hadn't (although have now) as to be brutally
honest the whole class matching stuff was a little hard for me to grasp and
as such I kind of fudged it until something worked.

Have just tried your suggestion and unfortunately it didn't seem to work
either. Agree about 3 bits (makes a bit more sense now), it initially seemed
to be further down in the config where my problem lied, however...

I have an alternative pool of 192.168.203.100-160 addresses that this DHCP
box is also dishing out. These are available to all, however wanted to have
a specific area for VMware  VM's, hence my attempts. The 2 pools seem to be
quite happily giving out leases to their appropriate machines. My VM's are
getting the 172.30.1.1-50 addresses quite happily and boot as normal, they
never get the 192.168 addresses, *providing* I add the whole MAC address to
a host declaration. However after looking at the logs, it seems the DHCP box
is offering the VMs a 192.168 address but they never accept it (I get
continual discover-offer-discover-offer messages in the log), so I guess
something is awry.

I *presumed* that my class was working, as in my understanding, as hosts are
global and hence are not affected directly by subnet declarations, yet my
hosts are receiving a 172 address (of which the pool says use this range and
"allow members vmware") that the class match was being applied. I guess this
isn't the case.

Time to read some more docs...

Confused :)

Dan

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