In this chapter, we will cover the following topics:

• Forwarding a local port to a remote host
• Pinging hosts on the network with ICMP
• Waiting for a remote network service
• Enumerating interfaces on your machine
• Finding the IP address for a specific interface on your machine
• Finding whether an interface is up on your machine
• Detecting inactive machines on your network
• Performing a basic IPC using connected sockets (socketpair)
• Performing IPC using Unix domain sockets
• Finding out if your Python supports IPv6 sockets
• Extracting an IPv6 prefix from an IPv6 address
• Writing an IPv6 echo client/server