Use Wireshark to crawl telnet username and password

Use Wireshark to crawl the Telnet destination IP address (telnet 192.168.88.1)

1, first open the Wireshark, then select the network card, click Start.

2, in order to enter Telnet or input in the filter (IP.DST = = Destination IP address and tcp.port== 23).

3, look at the following packet, find Telnet and be able to see the data:\r\n;

4, then look at the following packet, you can see the clear text user name and password. Such as

At this point you can see the clear text user name of the first letter x, continue to see you can find the user name and password behind.