DHCP and 2 subnets

[Joerg Pulz]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

On Sun, 12 Dec 2004, goose bla wrote:

> hello,
>
> I have router with inet and allias. 10.1.0.0/24 10.2.0.0/24.
> i want allot to pc(client) their IP by their MAC adress. but it's going
> only with one subnet. i can allot IP only to one subnet.
>
> [stripped]

Hi,

don't know if i got you roght, but here are my thoughts.
if you want to serve more than one ip network over one physical wire you 
have to define a shared network.
here is an example. (remeber, host declarations have to be inside! the 
subnet they belong to)

shared-network MYNETWORK {
 	subnet 10.1.0.0 netmask 255.255.255.0 {
 		range 10.1.0.31 10.1.0.60;
 		default-lease-time 600;
 		max-lease-time 7200;
 		option subnet-mask 255.255.255.0;
 		option domain-name "bla.org";
 		option domain-name-servers 222.222.222.22;
 		option routers 10.1.0.1;

 		host pc1 {
 			hardware ethernet 00:33:11:22:bb:94;
 			fixed-address 10.1.0.10;
 		}
 	}

 	subnet2 10.2.0.0 netmask 255.255.255.0 {
 		range 10.2.0.31 10.2.0.60;
 		default-lease-time 600;
 		max-lease-time 7200;
 		option subnet-mask 255.255.255.0;
 		option domain-name "bla.org";
 		option domain-name-servers 222.222.222.22;
 		option routers 10.2.0.1;

 		host pc2 {
 			hardware ethernet 00:44:44:22:bb:94;
 			fixed-address 10.2.0.10;
 		}
 	}
}

as far as i can tell, this setups work here for me. i don't know the exact 
behavior of dhcpd if you declare dynamic ranges in more than one ip 
subnet. i've only one dynamic range in one! subnet.

regards
Joerg

- -- 
The beginning is the most important part of the work.
 				-Plato
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.2.6 (FreeBSD)

iD8DBQFBvT7fSPOsGF+KA+MRAntAAKCVOy85a1hGnjzJPPZZrBHEszQ+kACcCT7x
d/2WSZOBLILhENRRV3BnJqc=
=v6L+
-----END PGP SIGNATURE-----