Yes, the two interfaces are configured to be int he same network using the same switch and everything; only because this server is replacing an old server. I guess if this is not an "OK" design I can just move the dhcp to a new server, since that this would be so easy to do.
Or you could define a specific interface for dhcp to listen on. It doesn't really need to listen on both if they're on the same network. This can be done in /etc/sysconfig/dhcpd