Active Connections Utility

Active Connections Utility

\ windows \system32\netstat.exe

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This tool displays protocol statistics and current TCP/IP network connections. See Section 7.2 in Chapter 7 for an example. Type netstat by itself to list the active incoming and outgoing network connections, or use these options:

 netstat [-a] [-e] [-nc] [-o] [-p   proto   ] [-r] [-s] [   interval   ] 

Option	Description
-a	Display all connections and open ports.
-e	Display Ethernet statistics; can be combined with -s .
-n	Display addresses and ports in numerical format (e.g. 192.168.0.1:88).
-o	Display the process that owns each listed connection.
-p proto	Show the connections corresponding the protocol; proto can be IP, IPv6, ICMP, ICMPv6, TCP, TCPv6, UDP, or UDPv6.
-r	Display the routing table.
-s	Display statistics for each protocol. By default, statistics are shown for all protocols, but this can be filtered with the -p option.
interval	Repeatedly run netstat, pausing interval seconds between each display. Press Ctrl-C to stop the display at any time. If omitted, netstat will display the current statistics once and then quit.