当IPSEC  VPN 的中心节点使用VRRP 冗余热备方式组网时,为避免主设备DOWN 机导致VPN 连接长时间中断,可以采用哪些解决方案()     
A、 使用IKE KEEPALIVE 功能
B、 使用IPSEC KEEPALIVE 功能
C、 使用IPSEC DPD 功能
D、 调整安全联盟的生存周期
A、 使用IKE KEEPALIVE 功能
B、 使用IPSEC KEEPALIVE 功能
C、 使用IPSEC DPD 功能
D、 调整安全联盟的生存周期
A、 IPSec in tunnel mode B、 IPSec in transport mode C、 GRE with IPSec in transport mode D、 GRE with IPSec in tunnel mode
A、show crypto map ipsec sa B、show crypto map C、show crypto engine connections active D、show ipsec crypto map E、show crypto map sa F、show ipsec crypto map sa
A、show ike security-associations B、show ipsec security-associations C、show security ike security-associations D、show security ipsec security-associations
A、Restart the IPsec Policy Agent service on Server1. B、Assign the Client (Respond Only) IPsec policy to Server1. C、Assign the Server (Request Security) IPsec policy to Server1. D、Assign the Client (Respond Only) IPsec policy to all client computers.
A、 Restart the IPsec Policy Agent service on Server1 B、 Assign the Client (Respond Only) IPsec policy to Server1 C、 Assign the Server (Request Security) IPsec Policy to Server1 D、 Assign the Client (Respond Only) IPsec policy to all client computers
A、A.Restart the IPsec Policy Agent service on Server1 B、B.Assign the Client (Respond Only) IPsec policy to Server1 C、C.Assign the Server (Request Security) IPsec policy to Server1 D、D.Assign the Client (Respond Only) IPsec policy to all client computers.