8 192.168.1.104/30 192.168.1.104/29 192.168.1.108/30 192.168.1.96/27 192.168.1.112/30 192.168.1.112/29 192.168.1.116/30 192.168.1.112/28 192.168.1.120/30 192.168.1.120/29 192.168.1.124/30 192.168.1.0/24 192.168.1.128/30 192.168.1.128/29 192.168.1.132/30 192.168.1.128/28 192.168.1.136/30 192.168.1.136/29 192.168.1.140/30 192.168.1.128/27 192.168.1.144/30 192.168.1.144/29 192.168.1.148/30 192.168.1.144/28 192.168.1.152/30 192.168.1.152/29 192.168.1.156/30 192.168.1.128/26 192.168.1.160/30 192.168.1.160/29 192.168.1.164/30 192.168.1.160/28 192.168.1.168/30 192.168.1.168/29 192.168.1.172/30 192.168.1.160/27 192.168.1.176/30 192.168.1.176/29 192.168.1.180/30 192.168.1.176/28 192.168.1.184/30 192.168.1.184/29 192.168.1.188/30 192.168.1.128/25 192.168.1.192/30 192.168.1.192/29 192.168.1.196/30 192.168.1.192/28 192.168.1.200/30 192.168.1.200/29 192.168.1.204/30 192.168.1.192/27 192.168.1.208/30 192.168.1.208/29 192.168.1.212/30 192.168.1.208/28 192.168.1.216/30 192.168.1.216/29 192.168.1.220/30 192.168.1.192/26 192.168.1.224/30 192.168.1.224/29 192.168.1.228/30 192.168.1.224/28 192.168.1.232/30 192.168.1.232/29 192.168.1.236/30 192.168.1.224/27 192.168.1.240/30 192.168.1.240/29 192.168.1.244/30 192.168.1.240/28 192.168.1.248/30 192.168.1.248/29 192.168.1.252/30 Figure 34-2. Classful subnets of a /24 network Chapter 34: IP Design Figure 34-3 shows examples of a normally subnetted network, a proper VLSM net- work, and an invalid VLSM network. In the invalid example, the network 192.168.1. 200/28 is not permitted by the rules of subnetting. Remember, a subnet must exist where it would normally fit had you subnetted the entire network with that subnet mask. If you were to configure an IP address of 192.168.1.200/28, the network address would be 192.168.1.192, and the broadcast address would be 192.168.1.207. Classful/27 Invalid 192.168.1.0/30 192.168.1.0/30 Each block is the 192.168.1.4/30 With VLSM, blocks can 192.168.1.4/30 192.168.1.8/30 192.168.1.0/27 192.168.1.12/30 be of varying sizes. This 192.168.1.8/30 same size. In