Server-map is used to store a mapping relationship. This mapping relationship can be a data connection relationship negotiated by control data, or it can be an address mapping relationship configured in NAT, so that the external network can actively access the internal network through the firewall.

() is a flaw in the specific implementation of hardware, software, protocols, or system security policy, which allows an attacker to access or destroy the system without authorization.

Which of the following descriptions about CRover IPsec are correct? (Multiple Choice)

Compared with the software architecture of C/S, B/S does not need to install a browser, and users are more flexible and convenient to use.

Which of the following is the numbering range of Layer 2 ACLs?