Task 3: Determine the Summary Route for the WEST LANs.
Step 1: List the WEST LAN1 and LAN2 in binary format.
LAN1 : 1 0 1 0 1 1 0 0 . 0 0 0 1 0 0 0 0 . 0 1 0 0 0 1 1 0 . 0 0 0 0 0 0 0 0
LAN2 : 1 0 1 0 1 1 0 0 . 0 0 0 1 0 0 0 0 . 0 1 0 0 0 1 1 0 . 1 0 0 0 0 0 0 0
Step 2: Count the number of left-most matching bits to determine the mask for the summary route.
1. How many left-most matching bits are present in the two networks?
24
2. What is the subnet mask for the summary route in decimal format?
255 . 255 . 255 . 0
Step 3: Copy the matching bits and then add all zeros to determine the summarized network address.
1. What are the matching bits for the two networks?
1 0 1 0 1 1 0 0 . 0 0 0 1 0 0 0 0 . 0 1 0 0 0 1 1 0
2. Add zeroes to make up the remainder of the network address in binary form.
1 0 1 0 1 1 0 0 . 0 0 0 1 0 0 0 0 . 0 1 0 0 0 1 1 0 . 0 0 0 0 0 0 0 0
3. What is the network address for the summary route in decimal format?
172 . 16 .70 . 0