Fragmentatio n

Question

When fragmentation is done,the last fragment has MF=0. Suppose the last fragmented goes thru a network where it is further fragmented into 2 further packets.

Now will both the packets have MF=0? ..or the first packrt will have MF=1 and the next packet  MF=0.

Answer 1

Fragmentation happens like this..

Each intermediate node at network layer receives a packet, examines the header to see destination and makes new header.

So depends on MTU in next hop, a given packet can be further fragmented.

In your problem, first packet will have M=1 and second has M=0

Answer 2

the first packet will have mf=1

and last packet will have mf=0