how to do client seperation using Vendor ID in ISC DHCP??????
Jason Gerfen
jason.gerfen at gmail.com
Mon Dec 26 14:52:19 UTC 2011
You will want to define a class matching the vendor id similar to this...
class "Intel"
{
match if substring (option vendor-class-identifier, 0, 5) = "intel";
}
The in your subnet declarations use the allow deny options like this...
subnet 80.0.0.0 netmask 255.0.0.0 {
allow Intel;
}
On Mon, Dec 26, 2011 at 7:33 AM, <ameen.shajahan at wipro.com> wrote:
> Hi all,****
>
> ** **
>
> Let us assume that there would be 2 servers running , so 2 clients
> should connect to the server.****
>
> I am using ISC dhcp-4.2.3 code.****
>
> ** **
>
> ** **
>
> ** **
>
> ****Linux server --------------->switch PC1****
>
> ********
> ****
>
> running two process****
>
> ****i:e
> dhcpd
> PC2****
>
> ** **
>
> ** **
>
> PC1 as client 1****
>
> PC2 as client 2****
>
> ** **
>
> ** **
>
> in switch , two ports are used to connect PC1 and PC2****
>
> these two ports I have configured as vlans 1 and 2. (access port)****
>
> ** **
>
> Vlan 1 for PC1 connection.****
>
> Vlan 2 for PC2 connection****
>
> ** **
>
> ** **
>
> Initially we would have configured in server side about which subnet it
> should listen.****
>
> ** **
>
> For example :****
>
> ** **
>
> Ifconfig etho add 10.1.1.1****
>
> Ifconfig eth1 add 20.1.1.1****
>
> ** **
>
> ** **
>
> But I got one information from dhcp users , there are methods available
> and I mentioned below.****
>
> ** **
>
> *1) Declare host statements for clients required in one subnet, then use
> allow/deny known-hosts to allow them in one and deny them in the other.*
>
> * *
>
> *2) Use classes and subclasses to assign clients in much the same way
> (typically by list of MAC addresses.*
>
> * *
>
> *3) Use classes matches on some arbitrary expression (could be vendor ID
> etc) to separate clients.*
>
> * *
>
> * *
>
> * *
>
> * *
>
> *But I need information about method 3 due to my requirements. How to do
> that type of client separation. Please let me know.*
>
> ** **
>
> ** **
>
> ****
>
> For example in dhcpd.conf contains 10subnets****
>
> ** **
>
> #vi dhcpd.conf****
>
> ** **
>
> subnet 10.0.0.0 netmask 255.0.0.0 {****
>
> ...****
>
> }****
>
> subnet 20.0.0.0 netmask 255.0.0.0 {****
>
> ...****
>
> }****
>
> ** **
>
> subnet 30.0.0.0 netmask 255.0.0.0 {****
>
> ...****
>
> }****
>
> subnet 40.0.0.0 netmask 255.0.0.0 {****
>
> ...****
>
> }****
>
> subnet 50.0.0.0 netmask 255.0.0.0 {****
>
> ...****
>
> }****
>
> subnet 60.0.0.0 netmask 255.0.0.0 {****
>
> ...****
>
> } ****
>
> subnet 70.0.0.0 netmask 255.0.0.0 {****
>
> ...****
>
> }****
>
> subnet 80.0.0.0 netmask 255.0.0.0 {****
>
> ...****
>
> }****
>
> ** **
>
> ** **
>
> ** **
>
> Regards,****
>
> Ameen S****
>
> ** **
>
> ** **
>
> ** **
>
> ** **
>
> * Please do not print this email unless it is absolutely necessary. *****
>
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>
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--
Jas
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