What does the netstat command do and which layer of the OSI model does it run on?

What does the netstat command do and which layer of the OSI model does it run on?

netstat -an command is used in this layer where -a flag is used to show both listening and non-listening (for TCP this means established connections) sockets. netstat -at is used to display either TCP or UDP connections. TCP and UDP protocols are used in the transport layer.

What are the advantages of using netstat?

The netstat command generates displays that show network status and protocol statistics. You can display the status of TCP and UDP endpoints in table format, routing table information, and interface information. The most frequently used options for determining network status are: s , r , and i .

What does netstat do for a TCP connection?

Displays active TCP connections, ports on which the computer is listening, Ethernet statistics, the IP routing table, IPv4 statistics (for the IP, ICMP, TCP, and UDP protocols), and IPv6 statistics (for the IPv6, ICMPv6, TCP over IPv6, and UDP over IPv6 protocols). Used without parameters, this command displays active TCP connections.

Which is the reference article for netstat command?

Reference article for the netstat command, which displays active TCP connections, ports on which the computer is listening, Ethernet statistics, the IP routing table, IPv4 statistics, and IPv6 statistics.

What to do with the-p parameter in netstat?

The -p parameter can be used to specify a set of protocols. Displays the contents of the IP routing table. This is equivalent to the route print command. Redisplays the selected information every interval seconds. Press CTRL+C to stop the redisplay.

Is there a graphical user interface for netstat?

Essentially, netstat is a command line program and for this reason doesn’t feature a graphical user interface. Programs like TCPView, which was developed by the Microsoft division Windows Sysinternals, makes it possible for statistics to be displayed graphically.