Python Network Programming

How it works...

A Pinger class has been constructed to define a few useful methods. The class initializes with a few user-defined or default inputs, which are as follows:

• target_host: This is the target host to ping
• count: This is how many times to do the ping
• timeout: This is the value that determines when to end an unfinished ping operation

The send_ping() method gets the DNS hostname of the target host and creates an ICMP_ECHO_REQUEST packet using the struct module. It is necessary to check the data integrity of the method using the do_checksum() method. It takes the source string and manipulates it to produce a proper checksum. On the receiving end, the receive_pong() method waits for a response until the timeout occurs or receives ...