Which two protocols must be allowed for an IPsec VPN tunnel is operate properly? (Choose two.)
- 50
- 51
- 168
- 169
- 500
- 501
Explanation: ESP uses protocol 50. AH uses protocol 51. ISAKMP uses UDP port 500.
Exam with this question: Quiz - Overlay Tunnels
Exam with this question: CCNA Security Chapter 8 Exam Answers
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