DHCP and 2 subnets

Glenn Satchell Glenn.Satchell at uniq.com.au
Fri Apr 11 13:19:30 UTC 2008

>Date: Fri, 11 Apr 2008 07:41:14 +0100
>To: dhcp-users at isc.org
>From: Simon Hobson <dhcp1 at thehobsons.co.uk>
>Subject: Re: DHCP and 2 subnets
>Chris Arnold wrote:
>>  >Without a subnet stanza for the server will not
>>>give out addresses on that network. The "allow members" statement above
>>>will restrict other clients from getting a 192.168.123.x address but
>>>it does not prevent them from getting a 192.168.124. address instead.
>>>You need to "deny members of " in that pool or set up a "124 ..." class
>>>and allow the specific hosts you want.
>>Ok guys, thanks for your patience as i get through this. Here is my 
>>dhcp.conf now;

>>        subclass "123 DHCP Clients" 00:0B:DB:C8:B1:71;
>>        subclass "123 DHCP Clients" 1:8:0:2b:a9:cc:e3;
>>        subclass "123 DHCP Clients" 1:0:0:c4:aa:29:44;

Notice that the last two clients have 7 octets in their hardware
address? That 1 at the beginning is a media type, 1 is ethernet, 4
token ring I think, and there are others for FDDI, etc.

You need to list subclasses like this:

        subclass "123 DHCP Clients" 1:00:0B:DB:C8:B1:71;


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