To prevent infinite looping of packets in a network, which field in the IPv4…
2025
To prevent infinite looping of packets in a network, which field in the IPv4 header is decremented at each router?
- A.
TTL
- B.
Hop Limit
- C.
Fragment Offset
- D.
Sequence Number
- E.
None of the above
Attempted by 57 students.
Show answer & explanation
Correct answer: A
Correct answer: TTL.
TTL means Time To Live. Each router reduces the TTL value before forwarding the packet.
When the value reaches zero, the packet is discarded, which prevents packets from circulating forever in routing loops.