Question

Refer to the exhibit. A network administrator issues the commands in order to configure secure remote access to the router. However, the administrator notices that sessions are still being made over telnet and are in plain-text. What action should be taken to encrypt the remote access traffic?

1) Enable SSH on the router
2) Enable FTP on the router
3) Enable Telnet on the router
4) Enable SNMP on the router

Answer 1

To secure remote access to the router and encrypt traffic, the network administrator must enable SSH. SSH provides encrypted communication, contrasting with Telnet's plain-text transmissions.

To ensure remote access traffic is encrypted, the network administrator should enable SSH on the router. Secure Shell (SSH) provides a secure channel over an unsecured network by using encryption, which prevents sensitive information from being exposed in plain text like Telnet does.

1) Enable SSH on the router to encrypt remote access traffic.
2) SSH ensures secure and encrypted communication, unlike Telnet.

When securing remote access to a network device, SSH is the preferred method. It encapsulates the session in an encrypted tunnel, providing security for the user credentials and commands being issued to the router. Unlike Telnet, which sends data in plain text, SSH uses strong encryption algorithms to protect data from eavesdropping and interception. To activate SSH, the administrator needs to generate cryptographic keys on the router and ensure that an IOS with SSH capabilities is installed.

To address the issue of plain-text remote sessions, the administrator must enable and configure SSH on the router. This is a critical step in securing the network infrastructure.