Re: How do I get the IP address?

[John Summerfield <summer OS2 ami com au>]

On Fri, 29 Jan 1999, Brent Sims wrote:

> Greetings,
> 
> 	Is there a command which will give me the IP address of a machine
> I'm logged onto? Or perhaps some way to determine what it is without
> having superuser access.

Hosts don't have IP addresses. Network interfaces too. Here's how to find
them from the commandline, and the result on one of my machines:
[summer emu summer]$ /sbin/ifconfig
lo        Link encap:Local Loopback  
          inet addr:127.0.0.1  Bcast:127.255.255.255  Mask:255.0.0.0
          UP BROADCAST LOOPBACK RUNNING  MTU:3584  Metric:1
          RX packets:69481 errors:0 dropped:0 overruns:0
          TX packets:69481 errors:0 dropped:0 overruns:0

eth0      Link encap:Ethernet  HWaddr 00:C0:F0:20:25:83
          inet addr:192.168.0.2  Bcast:192.168.0.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0
          TX packets:0 errors:2829 dropped:0 overruns:0
          Interrupt:9 Base address:0x6100 

eth0:0    Link encap:Ethernet  HWaddr 00:C0:F0:20:25:83
          inet addr:192.168.0.22  Bcast:192.168.0.255  Mask:255.255.255.0
          UP BROADCAST RUNNING  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0
          TX packets:0 errors:0 dropped:0 overruns:0

eth1      Link encap:Ethernet  HWaddr 00:E0:29:07:13:95
          inet addr:192.168.1.2  Bcast:192.168.1.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:1681876 errors:0 dropped:0 overruns:0
          TX packets:2079261 errors:0 dropped:0 overruns:0
          Interrupt:10 Base address:0x6000 

eth1:0    Link encap:Ethernet  HWaddr 00:E0:29:07:13:95
          inet addr:192.168.1.22  Bcast:192.168.1.255  Mask:255.255.255.0
          UP BROADCAST RUNNING  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0
          TX packets:0 errors:0 dropped:0 overruns:0

eth1:1    Link encap:Ethernet  HWaddr 00:E0:29:07:13:95
          inet addr:192.168.1.23  Bcast:192.168.1.255  Mask:255.255.255.0
          UP BROADCAST RUNNING  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0
          TX packets:0 errors:0 dropped:0 overruns:0

eth1:2    Link encap:Ethernet  HWaddr 00:E0:29:07:13:95
          inet addr:192.168.1.24  Bcast:192.168.1.255  Mask:255.255.255.0
          UP BROADCAST RUNNING  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0
          TX packets:0 errors:0 dropped:0 overruns:0

eth1:3    Link encap:Ethernet  HWaddr 00:E0:29:07:13:95
          inet addr:192.168.1.25  Bcast:192.168.1.255  Mask:255.255.255.0
          UP BROADCAST RUNNING  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0
          TX packets:0 errors:0 dropped:0 overruns:0

[summer emu summer]$ 
A few minutes ago it had this one too:
[summer emu summer]$ /sbin/ifconfig ppp0
ppp0      Link encap:Point-to-Point Protocol  
          inet addr:203.55.31.114  P-t-P:203.55.31.37  Mask:255.255.255.0
          POINTOPOINT  MTU:1500  Metric:1
          RX packets:19771 errors:607 dropped:607 overruns:0
          TX packets:16856 errors:0 dropped:0 overruns:0

[summer emu summer]$ 

Sometimes interfaces gave more than one IP address;-)

-- 
Cheers
John Summerfield
http://os2.ami.com.au/os2/ for OS/2 support.
Configuration, networking, combined IBM ftpsites index.