Which is a difference between OSPFv2 and OSPFv3?
- OSPFv3 uses a 128-bit router ID.
- OSPFv3 and OSPFv2 use different protocol ID numbers.
- OSPFv3 uses different packet types than OSPFv2.
- OSPFv3 does not have built in support for neighbor authentication.
Explanation: OSPFv2 has built in support for neighbor authentication which OSPFv3 does not. OSPFv3 relies on IPsec for neighbor authentication.
Exam with this question: CCNPv8 ENCOR (Version 8.0) - OSPF Exam
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