running dhcp on CUCM PUB and SUB

[vijendra Saravanamuthu]

hi Guys,

just wanted to find out if I can run DHCP on both pub and sub for same subnet without split scope of ip addresses?  as far as my research goes, it is not talked about anywhere (only spit scope docs are available).  if I enabled pub and sub for a subnet with same start and end IP add range , would there be an issue? would sub know that pub has already assigned an ip x.x.x.x to an end device and avoid assigning it to another device requesting dhcp?

also as far as I understand there is no redundancy mechanism for dhcp.  if we specify 2 dhcp severs using ip-helper address, the dhcp request goes to both servers and the device takes the ip add of the dhcp server who responds faster.

thank you.

vijay

[mhnedirli]

hi, 

you can not change any configuration on the subscriber, it is not designed for configuration, you can only make changes on the publisher and changes synchronized to subscribers. 

[Jaime Valencia]

DHCP info is not shared, they work as independent DHCP servers.