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IP Header Fields (Cont.)
Fragmentation offset (13 bits)
- Where in the packet this fragment should be placed
- Counted in 8-byte multiples
- 0 for non-fragments or first fragments
Time to live (8 bits)
- Set to the maximum number of hops that the packet should be forwarded
- Decreased by one by each router.
- If it reaches 0, the packet is dropped
Protocol (8 bits)
- The protocol of the data portion of the packet