On the following virtual firewall network, the USG unified security gateway provides leased services to the enterprise. The VPN instance vfw1 is leased to enterprise A.
The networking diagram is as follows. The PC C of the enterprise A external network user needs to access the intranet DMZ area server B through NAT. To achieve this requirement, what are the following key configurations?

Which of the following statements about the blacklist is correct?

As shown below, the domain abc address pool is the address pool where the L2TP VPN user is located. What is wrong with the following statement?

USG dual-machine hot standby must meet certain conditions and can be used below. What are the following statements correct?

Site to Site IPSec VPN negotiation failed. Which of the following should be checked? 1. Network connectivity issues; 2. View the establishment of IKE phase 1 security associations and related configurations; 3. View the establishment of IKE phase 2 security associations and related configurations; 4. See if the security ACLs at both ends mirror each other.