You could do this but any device that receives an IP from DHCP will have a subnet mask of 255.255.255.0. If you have any non-DHCP devices with the subnet mask 255.255.254.0 then they will think the DHCP machines are in the same subnet but the DHCP mahines will think that the non-DHCP servers are in a different subnet.
You certainly can put the first 254 addresses into one DHCP server (or router acting as DHCP server) and put the second 254 addresses into the other DHCP server. But it probably will not work as you want it to. You describe it as being one set of addresses for one floot and the second set of addresses for a second floor. But if the routers are HSRP peers then both servers are in the same broadcast domain. This means that both servers will hear any broadcast DHCP request. And both servers will respond to the DHCP request. It is highly unlikely that addresses on one floor will be assigned only by the server that you intend.
And as Jon points out the DHCP clients will get a subnet mask of /24. This will introduce some complication as stations in the first half of the real range attempt to communicate with stations in the last half of the range.
We are pleased to announce availability of Beta software for 16.6.3.
16.6.3 will be the second rebuild on the 16.6 release train targeted
towards Catalyst 9500/9400/9300/3850/3650 switching platforms. We are
looking for early feedback from customers befor...
Introduction Featured Speakers Luis Espejel is the Telecommunications
Manager of IENova, an Oil & Gas company. Currently he works with Cisco
IOS® and Cisco IOS XE platforms, and NX to some extent. He has also
worked as a Senior Engineer with the Routing P...
In this session you can learn more about Layer 3 multicast and the best
practices to identify possible threats and take security measures. It
provides an overview of basic multicast, the best security practices for
use of this technology, and recommendati...