QUESTION 4 Part A Consider the forwarding table below On whi

QUESTION 4 Part A

Consider the forwarding table below.

On which interface would a packet with a destination address of 224.64.195.60 be sent?

Answer:_____________

Part B

Consider the forwarding table below.

On which interface would a packet with a destination address of 224.60.65.137 be sent?

Answer:_____________

Please show work and explanantion to compare it to my approach. Thanks

Solution

Answer 4:

First we find the largest mask from the destination network. After getting the largest Mask , we will AND it with the given IP address and which with which it matches.

First let us take 224.0.0.0/10 , 32 - 10 = 22

Therefore mask = 11111111.11111111.11111100 .00000000

Given IP = 224.64.195.60 = 11100000 .01000000. 11000011 . 00111100

Now perform ANDing :

11111111. 11111111. 11111100. 00000000

11100000 . 01000000.   11000011 . 00111100

----------------------------------------------------------------

11100000 . 01000000 . 11000010 . 00000000.

Now it becomes : 224 . 64 . 194 . 0 , thus it matches with the destination network : 224.0.0.0/10

The network is 224.0.0.0/10