This means that you can verify the source of the information by using the MAC address of the sender (and the recipient, if necessary), providing an additional level of security.

这意味着您可以通过发送者（和接收者，如果必要的话）的 MAC 地址来验证信息的来源，额外提供了一级安全性。

youdao

The above scenario involving a requester-server channel works fine as long as the IP address of the sender system (192.168.1.1) is unchanged.

上述场景涉及到请求方-服务器通道，只要发送方系统的IP地址(192.168.1.1)不变，该通道就能工作正常。

youdao

The sender of a message is responsible only for using the correct packaging, supplying an accurate address, and applying the appropriate postage.

消息的发送方只负责使用正确的包装，提供正确的地址，并附上适当的邮资。

youdao