| Exam 300-320 | Question id=2722 | WANs for Enterprise Networks |
Which option is the unique requirement when supporting IP Multicast packets when designing IPsec VPNs?
| A. |
IPsec forwarding using transport mode | |
| B. |
IPsec forwarding using tunnel mode | |
| C. |
additional bandwidth for headend | |
| D. |
encapsulation of traffic with GRE or VTI |