Subj : Re: 0.0.0.0
To   : Tommi Koivula
From : Wilfred van Velzen
Date : Thu Jan 14 2016 10:46 am

Hi Tommi,

On 2016-01-14 10:21:26, you wrote to me:

 WV>> 0.0.0.0 is like a returned error code.

 TK> Yes.

 TK> Also 127.0.0.x other than 127.0.0.1 may be a special case which shouldn't
 TK> be called..

That could be intentional for testing purposes!

Maybe the broadcast address(es) should be blocked:

https://en.wikipedia.org/wiki/Broadcast_address

But you wouldn't get those from DNS, unless someone is specificly f*cking with 
it...

 TK> If you set a host offline at dyndns.com, it will get address
 TK> 216.146.38.125. There's no binkd answering so it wont cause any harm. 
Maybe
 TK> some other dynamic dns provider may use 0.0.0.0 when the host is marked
 TK> offline?

Probably.

 TK> Anyway, a list of undialable ip's might be useful in some cases.

I still think the firewall should take care of those!

Bye, Wilfred.

--- FMail-W32-1.69.12.144-B20160109
 * Origin: FMail development HQ (2:280/464)

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