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How to determine your IP address

Contents: Determining your IP address with a WebLogic utility program; Determining your IP address on a Solaris machine; Determining your IP address on an IRIX machine; Determining your IP address on a Windows NT machine

Determining your IP address with a WebLogic utility program

If you have already installed and compiled the WebLogic classes on this machine, you can use a WebLogic utility to determine your IP address:

  $ java utils.myip

It returns, for example:

Host bigbox is assigned IP address: 224.91.91.65

Determining your IP address on a Solaris machine

You can ping your machine, or if you do not know the name of your machine, you can ping `hostname`. Be sure that you enclose hostname in single backquotes. For example,

  $ ping -s `hostname` 10 1

returns:

PING mymachine.com: 10 data bytes
18 bytes from mymachine.com (192.1.1.1): icmp_seq=0. time=0. ms

----mymachine.com PING Statistics----
1 packets transmitted, 1 packets received, 0% packet loss
round-trip (ms)  min/avg/max = 0/0/0

Your IP Address is the number in parentheses in the information returned.

Determining your IP address on an IRIX machine

You can ping your machine, or if you do not know the name of your machine, you can ping `hostname`. Be sure that you enclose hostname in single backquotes. For example,

  $ ping `hostname`

returns:

PING mymachine.com (192.1.1.1); 56 data bytes
64 bytes from 192.1.1.1; icmp_seq=0 ttl=255 time=1.895 ms
64 bytes from 192.1.1.1; icmp_seq=1 ttl=255 time=6.234 ms
64 bytes from 192.1.1.1; icmp_seq=2 ttl=255 time=1.257 ms
64 bytes from 192.1.1.1; icmp_seq=3 ttl=255 time=1.188 ms

--- myserver.com ping statistics ---
4 packets transmitted, 4 packets received, 0% packet loss
round-trip min/avg/max = 1.188/2.414/6.234 ms

Your IP address is in parentheses on the first returned line of output.

Determining your IP address on a Windows NT machine

The command:

  C:\java> ipconfig

returns:

Windows NT IP Configuration
Ethernet adapter Elnk61:
        IP Address. . . . . . . . . : 192.1.1.1
        Subnet Mask . . . . . . . . : 255.255.255.0
        Default Gateway . . . . . . : 190.10.10.1