DHCP support for routing instance

The DHCP feature has been enhanced to include routing instance support. To configure a DHCP server, DHCP relay agent, or DHCP client in a routing instance, use the [edit routing-instances] hierarchy. 

The following considerations apply when you enable a DHCP server, DHCP relay agent, or DHCP client in a routing instance: 

• The DHCP server, DHCP relay agent, and DHCP client can be configured in one routing instance, but the functionality is mutually exclusive on one interface. If the DHCP client is enabled on one interface, the DHCP server or the DHCP relay agent cannot be enabled on that interface. 
• The DHCP client, DHCP relay agent and DHCP server services act independently in their respective routing instance. The following features can function simultaneously on a device: 
• DHCP client and DHCP server 
• DHCP client and DHCP relay agent 
• Multiple routing instances. Each instance can have a DHCP server, DHCP relay agent, or DHCP client, or each routing instance can have a DHCP client and DHCP server or a DHCP client and DHCP relay agent.