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Valid CCNA or any CCIE Certification can act as a pre-requisite.

Cisco Certified Network Associate Security (CCNA® Security)

640-553 IINS Implementing Cisco IOS Network Security (IINS)

The fowling excert is taken from the Cisco Website

Cisco Certified Network Associate Security (CCNA® Security) validates associate-level knowledge and skills required to secure Cisco networks. With a CCNA Security certification, a network professional demonstrates the skills required to develop a security infrastructure, recognize threats and vulnerabilities to networks, and mitigate security threats. .

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