https://community.extremenetworks.com/t5/extremewireless-identifi/internal-dhcp-server-in-ha-mode/m-p/54451#M6198 Hi Guys,<BR /> <BR /> how could i realize a setup in HA when the first controller is DHCP server and goes down?<BR /> Do I have to setup a DHCP with the same range on the 2nd controller and the adresses got sychronized (i know it is a bad idea to run two DHCP - is there a clever internal controller to controller communication)? Or do I have to setup the 2nd controller to a different range?<BR /> Customer had a solution where addresses where synced accros both controllers. Now wants to implement Extreme Wireless and came along with this question.<BR /> <BR /> Thanks,<BR /> Stephan<BR /> Mon, 15 Feb 2016 21:54:00 GMT Stephan 2016-02-15T21:54:00Z https://community.extremenetworks.com/t5/extremewireless-identifi/internal-dhcp-server-in-ha-mode/m-p/54451#M6198 Hi Guys,<BR /> <BR /> how could i realize a setup in HA when the first controller is DHCP server and goes down?<BR /> Do I have to setup a DHCP with the same range on the 2nd controller and the adresses got sychronized (i know it is a bad idea to run two DHCP - is there a clever internal controller to controller communication)? Or do I have to setup the 2nd controller to a different range?<BR /> Customer had a solution where addresses where synced accros both controllers. Now wants to implement Extreme Wireless and came along with this question.<BR /> <BR /> Thanks,<BR /> Stephan<BR /> Mon, 15 Feb 2016 21:54:00 GMT https://community.extremenetworks.com/t5/extremewireless-identifi/internal-dhcp-server-in-ha-mode/m-p/54451#M6198 Stephan 2016-02-15T21:54:00Z https://community.extremenetworks.com/t5/extremewireless-identifi/internal-dhcp-server-in-ha-mode/m-p/54452#M6199 Im lazy so I just copy the link  ....<BR /> <BR /> <A href="https://gtacknowledge.extremenetworks.com/articles/Q_A/Can-two-controllers-configured-as-DHCP-servers-work-in-High-Availability-Pair" target="_blank" rel="nofollow noreferrer noopener">https://gtacknowledge.extremenetworks.com/articles/Q_A/Can-two-controllers-configured-as-DHCP-server...</A> Mon, 15 Feb 2016 21:56:00 GMT https://community.extremenetworks.com/t5/extremewireless-identifi/internal-dhcp-server-in-ha-mode/m-p/54452#M6199 Ronald_Dvorak 2016-02-15T21:56:00Z https://community.extremenetworks.com/t5/extremewireless-identifi/internal-dhcp-server-in-ha-mode/m-p/54453#M6200 Smart lazy is the best kind! Thanks Ron....you're the best. Mon, 15 Feb 2016 21:56:00 GMT https://community.extremenetworks.com/t5/extremewireless-identifi/internal-dhcp-server-in-ha-mode/m-p/54453#M6200 Ryan_Mathews 2016-02-15T21:56:00Z https://community.extremenetworks.com/t5/extremewireless-identifi/internal-dhcp-server-in-ha-mode/m-p/54454#M6201 Hi Ronald,<BR /> <BR /> just what i needed. Thank You very much!<BR /> <BR /> Stephan <BR /> Mon, 15 Feb 2016 22:03:00 GMT https://community.extremenetworks.com/t5/extremewireless-identifi/internal-dhcp-server-in-ha-mode/m-p/54454#M6201 Stephan 2016-02-15T22:03:00Z