Ryan Lynch wrote:
On Fri, Aug 28, 2009 at 17:36, Sam
Varshavchik<mrsam(a)courier-mta.com> wrote:
> Ryan Lynch writes:
>
>> Do the Fedora network init scripts support additional secondary IP
>> addresses without the use of alias labels? Does an option for IPv4
>> addresses exist that works like IPV6ADDR_SECONDARIES?
>>
>> I just skimmed /usr/share/doc/initscripts-*/sysconfig.txt, but I
>> didn't see anything to that effect, so I'm guessing the answer is no,
>> and I have to use aliases and 'ifcfg-eth?:0' files.
> Yes, at least for IPv4. There is absolutely no support from the GUI, but you
> can manually install /etc/sysconfig/network-scripts/ifcfg-ethX:Y. For
> example, I have an ifcfg-eth1 and an ifcfg-eth1:1, with a second IP address.
> Just copy ifcfg-ethX to ifcfg-ethX:1, and stick in an additional IP address.
That's exactly what I'm trying to avoid--I don't want Fedora to add
the 'eth0:0', 'eth0:1', etc. labels. I'm wondering if the init
scripts support multiple addresses WITHOUT aliases.
I've never been able to find a solution to that that didn't require
running another script. /etc/rc.local is a kind of "catch all". There
are also /etc/sysconfig/network-scripts/ifup-post and ifdown-post.
Using iproute2 certainly gives good control.
ip address add 10.20.30.40/8 dev eth0
ip address add 10.20.30.41/16 dev eth0
ip address add 10.20.30.42/24 dev eth0
ip address add 10.20.30.43/32 dev eth0
ip address add 192.168.1.1/24 dev eth0
is an example of how to add addresses to an interface.
You may also use the same command to setup routes for your new found
diversity of addresses :)