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The TCP/IP Guide  9  TCP/IP Application Layer Protocols, Services and Applications (OSI Layers 5, 6 and 7)       9  TCP/IP Key Applications and Application Protocols            9  TCP/IP Administration and Troubleshooting Utilities and Protocols

TCP/IP DNS Registry Database Lookup Utility (whois/nicname) 1 2 3 4 5 6 TCP/IP Configuration Utilities (ipconfig, winipcfg and ifconfig)

UNIX netstat Universal Options and Parameters

Most of the options shown in these option groups are particular to those groups; for example, you cannot use “-s” when issuing the command “netstat -i”. However, there are also a number of universal options that can be used with more than one of these groups to modify the behavior of netstat variations in a consistent way. These options are described in Table 297.

Table 297: Typical UNIX netstat Universal Options and Parameters

Option / Parameters	Description
-f <family>	Limits the output of the command to information on a particular protocol address family, for hosts running multiple protocol suites. For example, the address family for regular TCP/IP is “inet”, while for IPv6 it is “inet6”. Others may also be supported.
-p <protocol>	Restricts output to data related only to a particular protocol, such as IP, TCP, UDP, or ICMP.
-n	Shows network addresses in numeric form, instead of showing them as symbolic names. Also shows ports as numbers instead of converting well-known UDP and TCP port numbers to the protocol names that use them (for example, “23” rather than “telnet”).
-W	Suppresses the automatic truncation of addresses (which is sometimes done for display formatting).

TCP/IP DNS Registry Database Lookup Utility (whois/nicname) 1 2 3 4 5 6 TCP/IP Configuration Utilities (ipconfig, winipcfg and ifconfig)

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