ak mas manazovatelny switch, napr. cisco, vies to poriesit nasledovne:
The ip helper-address interface subcommand tells the router to forward UDP broadcasts, including BootP, received on this interface. (UDP is the connectionless alternative to TCP at the Transport Layer.) Use the ip helper-address interface subcommand to specify the destination address for forwarding broadcast packets. Full command syntax follows.
ip helper-address address
no ip helper-address address