Re: [gentoo-user] Adding more than one static IP

[Marius Vaitiekunas <mariusvaitiekunas@gmail.com>]

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On Tue, Jan 25, 2011 at 1:08 PM, Amar Cosic <amar.cosic@gmail.com> wrote:

>
>
> On Tue, Jan 25, 2011 at 9:01 AM, Adam Carter <adamcarter3@gmail.com>wrote:
>
>>
>> config_eth0=( "77.xxx.104.14/24" )
>>> routes_eth0=( "default via 77.xxx.104.1" )
>>> config_eth0:1=( "77.xxx.104.100/24" )
>>> routes_eth0:1=( "default via 77.xxx.104.1" )
>>> config_eth0:2=( "77.xxx.104.101/24" )
>>> routes_eth0:2=( "default via 77.xxx.104.1" )
>>> config_eth0:3=( "77.xxx.105.100/24" )
>>> routes_eth0:3=( "default via 77.xxx.105.1" )
>>>
>>
>> You should let us know what you're trying to achieve with this. Every time
>> I have seen config like this, it has been because of fundamental
>> misunderstandings of networking. More that one IP address on a subnet
>> (unless there are VIPs) = fail.
>>
>> Remember routing occurs at layer 3, and for most configs should have no
>> reference physical interface. The OS knows which interface the next hop can
>> be found. In your config you've set the same route three times which makes
>> no sense.
>>
>> (ok i've oversimplified, but for 99.9% of cases the above is true)
>>
>
> I have this on Debian in /etc/network/interfaces:
>
> auto lo
> iface lo inet loopback
> auto eth0
> iface eth0 inet static
> address 82.xxx.148.194
> netmask 255.255.255.128
> gateway 82.xxx.148.131
> auto eth0:1
> iface eth0:1 inet static
> address 82.xxx.148.195
> netmask 255.255.255.128
> auto eth0:2
> iface eth0:2 inet static
> address 82.xxx.148.196
> netmask 255.255.255.128
> auto eth0:3
> iface eth0:3 inet static
> address 82.xxx.148.197
> netmask 255.255.255.128
>
>
> What I want to know is what is equivalent for this on Gentoo.  Let's just
> say this is VPS server with 4 IP's assigned to me as customer
>
>
> --
> Amar Ćosić
> amar.cosic@gmail.com
>
>
Hi,

I am using like that in /etc/conf.d/net
-----
config_eth0=( "ip1 netmask 255.255.255.224"
               "ip2 netmask 255.255.255.255"
               "ip3 netmask 255.255.255.255"
)

routes_eth0=( "default via your_gw" )
-----

ifconfig doesn't show this info. I use ip command for that:

# ip addr

I hope it helps.
-- 
mv

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