Grading Checklist: DHCP Not Working on Remote VLAN

• Checked router interface (SVI) configuration for VLAN 50
• Identified that ip helper-address is missing on the VLAN 50 interface
• Explained how DHCP relay works: router converts broadcast DISCOVER to unicast and forwards to server
• Compared VLAN 50 config to working VLANs (20, 30, 40) to spot the missing directive
• Verified that the DHCP server has no requests from VLAN 50 in its logs
• Used tcpdump or packet capture to confirm DHCPDISCOVER is broadcast on VLAN 50
• Proposed fix: add ip helper-address <DHCP-server-IP> to the VLAN 50 interface
• Checked that the DHCP server has a scope/pool for the VLAN 50 subnet range
• Verified no ACL blocking UDP 67/68 on the router or DHCP server
• Mentioned that ip helper-address also relays other UDP services (TFTP, DNS, etc.)
• Included post-fix verification (release/renew on client, check DHCP server logs)
• Noted that static IP hosts work because they bypass DHCP entirely