[Sunhelp] Alias on the loopback interface...

[Steven Levin]

The trouble is (sorry I wasn't more clear before) is that:

# ifconfig lo0:1 127.0.0.2 255.0.0.0 up
ifconfig: SIOCGLIFNETMASK: lo0:1: no such interface

But the answer was to:

# ifconfig lo0:1 plumb 127.0.0.2 up

At least on 2.8/x86, with the hardware we have, I just realized that it's
very unhappy with adding aliases to ANY interface without the 'plumb'
command.

Thanks!

Steve

> -----Original Message-----
> From: sunhelp-admin at sunhelp.org [mailto:sunhelp-admin at sunhelp.org]On
> Behalf Of dhansen at zebra.net
> Sent: Tuesday, June 20, 2000 4:58 PM
> To: sunhelp at sunhelp.org
> Subject: RE: [Sunhelp] Alias on the loopback interface...
>
>
>
>
>
>  You can configure logical interfaces to the loopback under
> Solaris just as you do any other device.
>      ifconfig lo0:1 aaa.aaa.aaa.aaa bbb.bbb.bbb.bbb up
>      ifconfig lo0:1 cluster_address 127.0.0.1 up
> or whatever suits your purposes.
>
>  If you state what you have tried then you can eliminate
> people re-telling you advice that you have already tried and
> you risk having a more clear answer that also explains what
> you may have done wrong in your earlier attempts.
>
>  -david
>
> --- Original Message ---
> "Steven Levin" <steven.levin at ipix.com> Wrote on
> Tue, 20 Jun 2000 14:30:16 -0700
>  ------------------
> Is it possible to add an alias IP to the loopback interface?
>  I know it is
> under some other *IX systems.
>
> Why do I want to, you ask?
>
> Well, for a meshed environment, what I want to do is run dual
> NICs, each one
> with a private network address.  Then I want to alias the
> internet-routable
> address to the loopback, and have each server announce that it
> has the route
> to that Internet IP.  This will allow the servers to route around
> a failed
> switch, for example (each NIC being connected to a different
> switch).
>
> but Solaris (at least, 2.8/x86) it doesn't seem to be working...
>
> Thanks!
>
> Steve
>
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