Re: Help with alias interfaces

[Antony Stone <Antony@Soft-Solutions.co.uk>]

On Wednesday 23 June 2004 9:30 pm, Dick St.Peters wrote:

> Antony Stone writes:
> > >
> > > > The deprecated way to get multiple IPs results in pseudo-interface
> > > > names such as eth1:0, eth1:1 etc as you discussed.
> > >
> > > Deprecated by whom?
> >
> > http://mirrors.bieringer.de/Linux+IPv6-HOWTO/conf-ipv6-in-ipv4-point-to-p
> >oint-tunnels.html (Section headings 9.3.1.1 & 9.3.1.2)
> > http://seclists.org/lists/honeypots/2004/Jan-Mar/0209.html
> > http://www.uwsg.iu.edu/hypermail/linux/kernel/0108.2/0485.html
>
> These are deprecating the use of "ifconfig", not the use of
> pseudo-interface names.

That is precisely what I was saying is deprecated - the use of ifconfig.

One of the results of using it is that you automatically and non-optionally 
get the pseudo-interface names (which are optional if you use ip addr).

Sorry if my wording was unclear - I didn't mean to suggest that multiple names 
for interfaces are inherently a bad idea or deprecated.

> However, most people aren't dealing with ipv6-in-ipv4 tunnels,
> honeypots, or thousands of IPs per interface, as are the references
> you cite.  "ifconfig" will handle the vast majority of cases and is
> simpler to use when the power of "ip" is not needed.

I simply looked up references to support my assertion that "ifconfig eth0:0" 
etc is deprecated.   The particular reasons why these people are using 
multiple IPs on one interface are irrelevant.

I agree with you that ifconfig will handle the majority of cases.

I don't agree that it's simpler to use, but I think that's just a matter of 
opinion.

However, as I said in my earlier posting, it doesn't matter to netfilter which 
method you use to get the multiple IPs, so by all means choose whichever you 
prefer.   I don't regard it as a big deal - I was simply surprised that you 
hadn't come across this use of ifconfig as being deprecated, so I gave some 
examples.

Regards,

Antony.

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