DHCPD

[Michael Gargiullo]

On Wed, 2004-03-03 at 19:23, Mike Koponick wrote:
> Hello all,
> 
> I would like to setup a DHCP server on a RH9.0 box with one Ethernet
> interface. However, I need to service multiple subnets for DHCP. These
> subnets are coming from multiple VLANs on the network and setting up
> DHCP relay is not an issue on the layer 3 switch. I would need to push
> out DNS, etc. From what I am reading, I would need to add an IP address
> from each subnet I wish to service to the Ethernet card, and setup my
> /etc/dhcpd.conf file accordingly.
> 
> Has anyone ever done this before? 
> 
> Thanks in advance,
> 
> Mike
> 

Yeah.. It's not that bad...probably easier then you think.

Assuming your switch will handle the dhcp relay

In your dhcpd.conf file add on subnet declaration for each subnet 
*NOTE-We're running DHCPd-3 if your running version 2 delete the first
three lines, and replace min-lease and max-lease lines with
default-lease.

____________________________________________________

ddns-update-style none;
ping-check true;
authoritative;
                                                                                                                             
###
### NET: Park pl
###
shared-network "Park (113)" {
        subnet 10.100.0.0 netmask 255.255.0.0 {
                filename "noservice.cfg";
                min-lease-time 2592000;
                max-lease-time 2592000;
                option time-servers 192.168.200.254;
                option routers 10.100.0.1;
                range 10.100.0.2 10.100.255.254;
                                                                                                                      
        }
}
shared-network "CPE Shared (115)" {
        subnet 192.168.1.0 netmask 255.255.255.0 {
                min-lease-time 86400;
                max-lease-time 86400;
                option domain-name-servers 192.168.130.2, 192.168.130.3;
                option routers 192.168.1.1;
                range 192.168.1.32 192.168.1.254;
        }
}
shared-network "CPE Shared (116)" {
        subnet 192.168.2.0 netmask 255.255.255.0 {
                min-lease-time 86400;
                max-lease-time 86400;
                option domain-name-servers 192.168.130.2, 192.168.130.3;
                option routers 192.168.2.1;
                range 192.168.2.32 192.168.2.254;
        }
}
shared-network "CPE Shared (117)" {
        subnet 192.168.3.0 netmask 255.255.255.0 {
                min-lease-time 86400;
                max-lease-time 86400;
                option domain-name-servers 192.168.130.2, 192.168.130.3;
                option routers 192.168.3.1;
                range 192.168.3.32 192.168.3.254;
        }
}