Technical Tip: HA heartbeat encryption and authentication example

When encryption and authentication are enabled, the heartbeat message will be transmitted in the ESP protocol. The data will be encrypted and prevent information disclosure. (HA interface is connected to the switch)

config system ha

    set authentication enable

    set encryption enable

end

1. The following is an example of a packet when encryption and authentication are disabled (the Default setting): 

TCP703:

2. The following is an example of a packet when encryption and authentication are enabled:

ESP protocol:

Related article:

Technical Tip: Encryption & Authentication of HA traffic via IKE daemon