Question : DHCP server in other network


Routers separate broadcast domains from each other, which means broadcast packets are limited to each network. However, say if I have a DHCP server in network A, how will I still be able to get an IP from the same DHCP server for a machine which is in network B ?

Answer : DHCP server in other network

On all interfaces in the path of the dhcp server, you will need to enable the helper-address (DHCP relay agent).

configure terminal
interface type number
ip helper-address address

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