What three protocols must be permitted through the company firewall for establishment of IPsec site-to-site VPNs? (Choose three.)

Last Updated: May 28, 2021
IT Exam Items Repository › Category: CCNA Security › What three protocols must be permitted through the company firewall for establishment of IPsec site-to-site VPNs? (Choose three.)

What three protocols must be permitted through the company firewall for establishment of IPsec site-to-site VPNs? (Choose three.)

  • HTTPS
  • SSH
  • AH
  • ISAKMP
  • NTP
  • ESP

Explanation: ESP, AH, and ISAKMP must all be permitted through the perimeter routers and firewalls in order for IPsec site-to-site VPNs to be established. NTP and HTTPS are application protocols and are not required for IPsec.

Related exam: CCNA Security Chapter 8 Exam Answers
Related exam: Module 19: Quiz – Implement Site-to-Site IPsec VPNs Network Security

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