A network engineer is configuring DMVPN and entered the crypto isakmp key cisc0383320506 address 0.0.0.0 command on host A. The tunnel is not being established to host B. What action is needed to authenticate the VPN?
A.
Change the password on host A to the default password
B.
Enter the command with a different password on host B
C.
Enter the same command on host B
D.
Change isakmp to ikev2 in the command on host A
C. Enter the same command on host B
The crypto isakmp key command is used to set the shared secret key for Internet Security Association and Key Management Protocol (ISAKMP) on a router. In order for the VPN tunnel to be established between host A and host B, the same shared secret key must be configured on both hosts. In this case, the network engineer needs to enter the same crypto isakmp key command, with the same password, on host B as they did on host A. This will ensure that both hosts are using the same shared secret key for authentication and the tunnel will be established. The other options A, B and D are not correct.
The question should say the crypto isakmp key cisc0383320506 address 0.0.0.0 0.0.0.0
Example
Add dynamic pre-shared keys for all the remote VPN !--- routers and the hub router.
crypto isakmp key cisco123 address 0.0.0.0 0.0.0.0
For me the good answer is C.
Enter 0.0.0.0 on a this command line could be done on Hub and Spoke.
Hub configuration is done on ip nhrp.
https://www.cisco.com/c/en/us/td/docs/ios/12_2/security/command/reference/srfike.html#wp1017897
https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/sec_conn_dmvpn/configuration/15-mt/sec-conn-dmvpn-15-mt-book/sec-conn-dmvpn-dmvpn.html#GUID-BDBD63D7-C9FD-490F-B1AF-EFC38B6B497B
I would say its A, because if you entered the same command on Host B, they would never establish a tunnel. crypto isakmp key xxx 0.0.0.0 is only ever used on hubs. If you use the same command on a spoke they will never connect to each other.
This section is not available anymore. Please use the main Exam Page.350-701 Exam Questions
Log in to ExamTopics
Sign in:
Community vote distribution
A (35%)
C (25%)
B (20%)
Other
Most Voted
A voting comment increases the vote count for the chosen answer by one.
Upvoting a comment with a selected answer will also increase the vote count towards that answer by one.
So if you see a comment that you already agree with, you can upvote it instead of posting a new comment.
Marshpillowz
7 months, 1 week agosull3y
1 year, 9 months agopsuoh
1 year, 9 months agoNet4dd
1 year, 10 months agodr4gn00t
2 years, 9 months agoLaryoul
2 years, 10 months agoloiphin
2 years, 10 months agoDarkestHour
2 years, 4 months ago_nomad_
2 years, 11 months ago