wireshark中 Which data packets carry payloads related to the Security Association (SA)?

In Wireshark, the data packets that carry payloads related to the Security Association (SA) are primarily associated with the Internet Key Exchange (IKE) protocol and the protocols used for IPsec, such as Authentication Header (AH) and Encapsulating Security Payload (ESP).

1. IKE Packets: These packets are part of the initial negotiation stage where the SA is established. Look for packets marked as IKE or IKEv1/IKEv2 in Wireshark. They will typically contain the SA payload in their message contents.

2. ESP Packets: Once the IKE negotiation is complete, packets using the ESP protocol encapsulate the actual data being transmitted securely. These packets will include header information related to the security association.

3. AH Packets: If the AH protocol is used, these packets also carry information related to the security associations, including integrity checks and authentication data.

To identify these packets in Wireshark, you can use filters like:

• ike to view IKE traffic
• esp for ESP traffic
• ah for AH traffic

By inspecting these packets, you can analyze the SA information exchanged during the IKE negotiation and the secure communication established thereafter.