Question:
How to verify strong and secured SSH connection?
- ssh -v 1 -l admin 10.1.1.1
- ssh -v 2 -l admin 10.1.1.1
- ssh -l admin 10.1.1.1
- ssh v 2 admin 10.1.1.1
Explanation: This question wants to ask how to use the router as the SSH client to connect into other routers. The table below shows the parameters used with SSH:
| SSH command parameters | Description |
| -v | specifies whether we are going to use version 1 or version 2 |
| -c {3des | aes128-cbc | aes192-cbc j aes256-cbc} | specifies the encryption you are going to use when communicating with the router. This value is optional; if you choose not to use it, the routers will negotiate the encryption algorithm to use automatically |
| -l username | specifies the username to use when logging in to the remote router |
| -m {hmac-md5 | hmac-md5-96 | hmac-sha1 | hmac-sha1-96} | specifies the type of hashing algorithm to use when sending your password. It is optional and if you do not use it, the routers will negotiate what type of hashing to use. |
| ip-address | hostname | we need to specify the IP address or, if you have DNS or static hostnames configured, the name of the router you want to connect to |
For example the command “ssh -v 2 -l admin 10.1.1.1” means “use SSH version 2 to connect to a router at 10.1.1.1 with username “admin”.
Answer C is not correct because it is missing the version needed to use.
Exam with this question: CCNA v3.0 (200-125) Study Guide – Exam Dumps
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