IP helper-address configuration in Packet Tracer | Computer Networking Tips
How to Configure DHCP Relay Agent - SYSNETTECH Solutions
Example for Configuring a DHCP Relay Agent - CloudEngine 16800, 12800, 9800, 8800, 7800, 6800, and 5800 Series Switches Typical Configuration Examples (V100 and V200) - Huawei
DHCP - Configuring the Cisco IOS DHCP Relay Agent [Support] - Cisco Systems
Configure HSRP-Aware DHCP Relay - Route XP Private Network Services
Manual:IP/DHCP Relay - MikroTik Wiki
Configure the router as a DHCP relay agent | Eslam Daoud
How to provision a Mikrotik router as a dhcp relay agent.