DHCP Relay
A function on routers that allows them to forward Dynamic-Host-Configuration-Protocol discover broadcast packets to DHCP servers outside of the scope being served.
Routers don't normally serve any broadcast packets, which is why this is a necessary function for larger networks.
This setting is configured using the ip helper command in the router's OS.
Forward DHCP broadcasts using the following interfaces on the client subnets.
interface eth1ip helper-address 10.1.0.200