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300-410 Practice Question: Consider the ERSPAN configuration on a router:…

Consider the ERSPAN configuration on a router:

monitor session 1 type erspan-source source interface GigabitEthernet0/0/1 both destination erspan-id 1

ip address 192.168.1.100

origin ip address 192.168.1.1

What is the primary purpose of the 'origin ip address' command?

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

✓

It defines the source IP address used in the ERSPAN GRE encapsulation.

The origin IP address is the source IP used in the ERSPAN encapsulated packets, allowing the destination to identify the source of the mirrored traffic.

Answer analysis

Option-by-option breakdown

For each option: why learners choose it and why it is or isn't the right answer here.

  • ✗

    It specifies the IP address of the monitoring device.

    Why it's wrong here

    The destination IP is the monitoring device; origin is the source router.

  • ✓

    It defines the source IP address used in the ERSPAN GRE encapsulation.

    Why this is correct

    This is the correct function of the origin IP address.

  • ✗

    It sets the IP address of the interface being monitored.

    Why it's wrong here

    The source interface is specified separately.

  • ✗

    It enables ERSPAN on the specified interface.

    Why it's wrong here

    ERSPAN is enabled by the session type, not this command.

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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.