ZeroConf was VNC fails to start

[Ivan Avery Frey]

Jason Spiro wrote:
> On 4/27/06, wattst-dxuVLtCph9gsA/PxXw9srA at public.gmane.org <wattst-dxuVLtCph9gsA/PxXw9srA at public.gmane.org> wrote:
> 
>> Thanks for the advice, but it turned out to be a misconfigured router; two
>> machines with the same IP...dumb.
> 
> Hmmm... if I recall correctly, I once saw a Windows XP machine in my
> old school library show a strange balloon notification. it had the
> same IP as another machine, and it had automatically switched its IP
> to 169.254.something.somethingelse (which IIRC is in the unconfigured
> IP address space).

ZeroConf! It's an RFC. It's been out for a long time. Mac OS X has it, too.
> 
> Now you've made me curious about a few things: :-)
> 
> 1. does Windows always notice all IP collisions, or only sometimes?

I think Windows has had it since Win95. Does it work? No idea.
> 
> 2. can the Linux networking stack automatically notice collisions too
> and pop up a dialog box notification via DBUS?

There is a Debian package called zeroconf. I don't know if it logs collision 
corrections.

> 
> 3. can cheap home routers bought at Future Shop notice
> statically-configured-machine IP address collisions as well and
> display a warning on the web interface's Status screen?

I think this was the one sticking point preventing me from moving to ZeroConf. 
And since I had DHCP working, I didn't bother doing any further investigation.

ZeroConf in a way, IIRC, was derived from ideas that created AppleTalk.

Ivan.
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