单选题A route-based VPN is required for which scenario?()A
when the remote VPN peer is behind a NAT deviceB
when multiple networks need to be reached across the tunnel and GRE cannot be usedC
when the remote VPN peer is a dialup or remote access clientD
when
题目
单选题
A route-based VPN is required for which scenario?()
A
when the remote VPN peer is behind a NAT device
B
when multiple networks need to be reached across the tunnel and GRE cannot be used
C
when the remote VPN peer is a dialup or remote access client
D
when a dynamic routing protocol is required across the VPN and GRE cannot be used