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An administrator is configuring their transparent Cisco FTD device to receive ERSPAN traffic from multiple switches on a passive port, but the Cisco FTD is not processing the traffic. What is the problem?
Suggested Answer: C
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12 comments · newest first
MA
Marnie
2 months ago
I'm leaning towards A. Without Layer 3, GRE traffic won't go through.
LA
Lavonna
2 months ago
I feel like B is the issue. The monitor session ID needs to match.
JU
Justine
2 months ago
I think it's option D. Passive ports can't handle ERSPAN.
ME
Merrilee
2 months ago
Hmm, I’m not convinced about that. Could it really be just a port issue?
LA
Lashawn
3 months ago
Yeah, I agree with D, it needs an ERSPAN port for sure.
SU
Suzan
3 months ago
Wait, are you sure about option C? I thought FTD could handle it in transparent mode.
TA
Tambra
3 months ago
I think it's option B, the session ID mismatch is a common issue.
WI
Willard
3 months ago
Definitely option D, passive ports can't handle ERSPAN.
DW
Dwight
3 months ago
I’m leaning towards option A, but I’m not completely sure if Layer 3 connectivity is the main issue here.
VI
Vivan
3 months ago
I feel like the issue could be related to the passive port configuration. I vaguely recall that ERSPAN needs a dedicated port.
WI
William
4 months ago
I think I saw a question like this in practice, and it might have been about needing a routed mode for ERSPAN to work properly.
MA
Marya
4 months ago
I remember something about ERSPAN needing specific configurations on both ends, but I'm not sure if it's the monitor session ID or something else.