1. A method for sending packets in a network, the method comprising: receiving, at a computing device, a set of addresses from a first segment of the network, wherein the set of addresses is a subset of the all addresses in the first segment of the network; receiving a packet from the network, the packet having a source address in the first segment of the network and a destination address in a second segment of the network; and bridging the packet from the first segment to the second segment only when the source address or the destination address of the packet is one of the addresses included in the received set of addresses.