Route Aggregation or Summarization Summarize the following r

Route Aggregation or Summarization: Summarize the following routes Do not include additional blocks 193 65.72.0/24 193.65.73.0/24 193.65.74.0/24 193.65.75.0/24 193.65.75.0/24 193.65.76 0/24

Solution

Since the third octet in IPs are different , first two octet will be same in the summarized ip address. We need to consoder the thord IP address.

193.65.72.0/24 : 193.65.01001000.0/24
193.65.73.0/24 : 193.65.01001001.0/24
193.65.74.0/24 : 193.65.01001010.0/24
193.65.75.0/24 : 193.65.01001011.0/24
193.65.75.0/24 : 193.65.01001011.0/24
193.65.76.0/24 : 193.65.01001100.0/24

Since the common bits in third octet for all IPs is 01001xxx. Thus, the summarize IP address is 193.65.72.0.

Also since first 21 bits ( 8 (first octet) + 8 ( second octet )+5 (third octet) ) are same, Therefore

Summary Address : 193.65.72.0/21