An intranet has made a network, the old equipment is offline, the new network equipment is brought online, and after the service test, it is found that most of the original service traffic cannot work normally. What is the quickest way to restore the business?

112. The ESP only verifies the IP payload and can perform NAT traversal, but the ESP encrypts the Layer 4 port information and causes the PAT function to be unusable. This problem can be solved by using the IPSec transparent NAT function, which encapsulates the ESP packet in the UDP header and comes with the necessary port information to make the PAT work normally.

134. Which of the following is the connection status data to be backed up in the HRP function?