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300-410 Practice Question: In ERSPAN, what is the default encapsulation type…
In ERSPAN, what is the default encapsulation type used for transporting mirrored packets across an IP network?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
GRE
ERSPAN uses GRE (Generic Routing Encapsulation) to encapsulate the original packets for transport over an IP network.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
IPsec
Why it's wrong here
IPsec is not the default; ERSPAN uses GRE.
- ✓
GRE
Why this is correct
ERSPAN uses GRE encapsulation as defined by Cisco.
- ✗
MPLS
Why it's wrong here
MPLS is not used for ERSPAN encapsulation.
- ✗
VXLAN
Why it's wrong here
VXLAN is a different technology.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This 300-410 practice question is part of Courseiva's free Cisco certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the 300-410 exam.