Determine how many host addresses and subnets are available. How many host addresses are available in a /25 network? What is the total number of host addresses needed in the topology diagram? How many subnets are needed in the network topology? Step 2: Determine the largest subnet. What is the subnet description (e.g. BR1 LAN or BR1-BR2 link)? How many IP addresses are required in the largest subnet? What subnet mask can support that many host addresses? How many total host addresses can that subnet mask support? Can you subnet the 192.168.33.128/25 network address to support this subnet? What are the network addresses that would result from this subnetting? Use the first network address for this subnet.