Which IPsec configuration mode can be used for implementing GRE-over-IPsec VPNs?.
A. Policy-based only.
B. Route-based only.
C. Either policy-based or route-based VPN.
D. GRE-based only.
Which IPsec configuration mode can be used for implementing GRE-over-IPsec VPNs?.
A. Policy-based only.
B. Route-based only.
C. Either policy-based or route-based VPN.
D. GRE-based only.