Suppose an IP datagram with 10250 bytes of data (not counting the IP header) is sent across three networks of the Internet (i.e., from source host over network 1 to router 1, from router 1 over network 2 to router 2, and from router 2 over network 3 to the destination host). The rst network has an MTU of 4000 bytes; the second has an MTU of 1000 bytes; the third has an MTU of 3000 bytes. Here, a network's MTU gives the size of the largest IP datagram that can be carried in a link-layer frame.
Give the sizes and o sets of the sequence of fragments delivered to the network layer at router 1,at router 2, and at the destination host. Assume all IP headers are 20 bytes long