Since the company is renovating a new office space and is updating all cisco routers, the other options could a network administrator configure for route security are:
Message authentication is an additional security measure. The message authentication data security feature offers services to secure the integrity of data for chosen LU-LU sessions, just like data encryption does to ensure data secrecy.
Therefore, Message authentication is the process of examining the validity and integrity of sent messages. The processing of message authentication codes (MACs) enables you to confirm that a message hasn't been tampered with or falsely introduced into the system.
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