Which two encapsulation methods are supported by Cisco IOS VTIs? (Choose two.)

Last Updated: May 1, 2026
IT Exam Items Repository › Category: CCNP ENCOR v9 › Which two encapsulation methods are supported by Cisco IOS VTIs? (Choose two.)

Which two encapsulation methods are supported by Cisco IOS VTIs? (Choose two.)

  • SSL
  • TLS
  • ESP
  • AH
  • GRE

Explanation: Cisco IOS Virtual Tunnel Interfaces (VTIs) are a simplified mechanism for protecting site-to-site VPN tunnels. The sources explicitly state that the encapsulation for a VTI must be either IPsec Encapsulating Security Payload (ESP) or Authentication Header (AH).

While GRE is a widely used tunneling protocol, the sources distinguish it as a separate technology that supports a broader range of protocols, whereas VTIs are specifically designed to terminate IPsec tunnels using a routable interface,. SSL and TLS are not mentioned as encapsulation methods for VTIs in these excerpts.

Related exam: Modules 17 – 20: Checkpoint Exam: Virtualization and Network Services Answers (CCNP ENCOR v9)

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