Shulou(Shulou.com)06/01 Report--

The local loopback address does not belong to any classful address class. It represents the local virtual interface of the device, so it is considered by default to be an interface that will never go down. There is a similar definition in the windows operating system, so it is usually possible to ping this local loopback address before installing the network card. It is generally used to check whether the local network protocol and basic data interface are normal.

Sniffing tools such as Wireshark sniff the data that passes through the network card, but the loopback address data does not pass through the network card, so Wireshark cannot obtain the relevant data.

RawCap is a sniffing tool under Windows, which is implemented using primitive sockets to sniff the data of the loopback address.

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