DHCP server behing Cisco relay

[Niall O'Reilly]

On 21 May 2016, at 3:09, Hernan Saltiel wrote:

>    Today, I have a Windows machine running a DHCP server, with IP 
> address [192.168.120.20/24](http://192.168.120.20/24), and serving 
> DHCP address range 10.0.0.10 -> 10.0.200.200. Then, I can assume that 
> my Cisco switch is working just fine. It's a soho switch, so it has 
> only "secondary subnets", a concept that may sound like vlans, but are 
> not. But this is working fine.

   I expect you'll need a "shared-network" declaration to let dhcpd know 
that
   the two subnets belong together.

shared-network whatever {
   subnet 10.0.0.0 netmask 255.255.0.0 {
     # details ...
   }

   subnet 192.168.120.0 netmask 255.255.255.0 {
     # details ...
   }
}

   I hope this helps.


   Best regards,

   Niall O'Reilly