1. Configuring CUCM DHCP Services
2. Configuring DHCP on Cisco ASA
3. Enabling/Disabling DNS on CUCM
One CUCM in cluster to act as a DHCP server
- System > DHCP > Add Server (Supports multiple subnets)
- System > DHCP > Add Subnets
Do you want to use DNS for the IP Phone communication? Jeremy recommends NO, but debatable. (Option 66 for DNS instead of Option 150)
You need a DNS server than can resolve the hostname of your CUCM nodes.