Re: Ethernet Adapter Configuration

[Bob Nielsen <nielsen@oz.net>]

On Sat, Jan 18, 2003 at 05:33:06PM -0000, Kevin Smith wrote:
> Hi All,
> 
> Well, Debian Linux 3.0r1 (powerpc) installed and working like a dream, well
> just about anyway. ;)
> 
> I'm trying to work out the ifconfig tool and how to assign more than 1 IP
> address to the ethernet card.  I have an IP address assigned to eth0,
> however, I don't know how to assign another IP address to it.
> 
> This is (bizarrely enough) easy in Windows 2000 as I currently have about 8
> IPs on the ethernet card, but how do I do it with Linux?
> 
> I thought I could do something like this: ifconfig eth1 up.  But it reports:
> No such device.
> 
> Any ideas?  Unless of course ifconfig is not infact the correct tool...?
> 

>From the IP-Alias mini-HOWTO:

 2. Setup the loopback, eth0, and all the IP addresses beginning with the
    main IP address for the eth0 interface:
    /sbin/ifconfig lo 127.0.0.1
    /sbin/ifconfig eth0 up
    /sbin/ifconfig eth0 172.16.3.1
    /sbin/ifconfig eth0:0 172.16.3.10
    /sbin/ifconfig eth0:1 172.16.3.100

    172.16.3.1 is the main IP address, while .10 and .100 are the aliases.
    The magic is the eth0:x where x=0,1,2,...n for the different IP
    addresses. The main IP address does not need to be aliased.