300-510 · Question #26
Refer to the exhibit. After you applied these configurations to routers R1 and R2, the two devices could not form a neighbor relationship. Which reason for the problem is the most likely?
The correct answer is C. The two routers have the same network ID.. For those asking about the password, area authentication doesn't prevent neighboring to come up because it is carried only in LSP, CSNP and PSNP messages and not in IIH messages. system-is-is/13792-isis-authent.html
Question
Refer to the exhibit. After you applied these configurations to routers R1 and R2, the two devices could not form a neighbor relationship. Which reason for the problem is the most likely?
Exhibit
Options
- AThe two routers cannot authenticate with one another.
- BThe two routers have the same area ID.
- CThe two routers have the same network ID.
- DThe two routers have different IS-types.
How the community answered
(26 responses)- A4% (1)
- B12% (3)
- C81% (21)
- D4% (1)
Explanation
For those asking about the password, area authentication doesn't prevent neighboring to come up because it is carried only in LSP, CSNP and PSNP messages and not in IIH messages. system-is-is/13792-isis-authent.html
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