So we have taken over a network where they are using both DHCP Relay on their Cisco ASA and IP helper on the switch. We removed DHCP relay from the ASA but now it looks like only VLAN 1 is getting an up from dhcp. After adding it back in, it’s not working anymore. IP helper was not removed from the switch.
My question is do you guys prefer using dhcp relay on the firewall or using IP helper on the switch behind it??