Zachár Balázs wrote: >One VLAN: 111 > >One router with one interface int the 111 VLAN with two IP address: >10.128.43.1, 10.128.42.1 (secondary) On the interface there is an ip >helper-address 10.128.43.121 command! > >Two Subnet: 10.128.43.0/24, 10.128.42.0/24 RTFM (man dhcpd.conf), look up shared-network.