From: xxx @yahoo.co.uk
To: ipcalc-200502@jodies.de
Subject: hi

reply me

From: Krischan Jodies
To: xxx@yahoo.co.uk
Subject: Re: hi

On Sun, Nov 27, 2005 at 11:23:41AM +0000, xxx wrote:
> reply me
Oink.

Krischan

From: xxx @yahoo.co.uk
Subject: Re: hi
To: Krischan Jodies

would you please send me the course of IP subnetting .
Krischan Jodies krischan @jodies.de wrote: On Sun, Nov 27, 2005 at 11:23:41AM +0000, xxx wrote:
> reply me
Oink.

Krischan

Remo Rickli hat ein sehr nützlich aussehendes Network Management Tool geschrieben, das obendrein ein für diesen Zweck portiertes ipcalc enthält. Wer viele Router in seinem Netz verwalten muss sollte sich NeDI unbedingt mal anschauen.

On Thu, Jul 07, 2005 at 02:59:51PM +1000, xx wrote:
> Subject: inconsistencies
>
> Hello Krischan
>
> I must say that I write this bug report with some frustration. However I’ll
> try to stick to the facts.
>
> It seems when your calculator is presented with a /32 calculation, it
> returns inconsistent results.
>
> Sometimes the broadcast, hostmin and hostmax address are all the same,
> sometimes the hostmin is one number greater than the broadcast and the
> hostmax.
>
> I am not a networking guru but this seems like an error to me and my
> network people.
>
> Unfortunately I spent a substantial amount of time trying to use your tool
> before I found this fault.
>
> xx

Dear xx,

you are right, the “calculation” is wrong. And not only that, it’s completely
futile. /32 routes are so-called hostroutes. They don’t have broadcast adresses, useable address range or anything else that would be worth a calculation.

The newest release of the calculator
(http://jodies.de/ipcalc-archive/ipcalc-0.38/) has support for this special
case. (And also for /31, which is again a not-so-normal calculation).

Look:

kjodies@segfault:~> ipcalc -b 192.168.0.1/32
Address: 192.168.0.1
Netmask: 255.255.255.255 = 32
Wildcard: 0.0.0.0
=>
Hostroute: 192.168.0.1
Hosts/Net: 1

Fragen von Cisco Kurs Teilnehmern kommen viele und ich beantworte das sogar meistens. Aber dass einer glaubt mich so verarschen zu müssen habe ich noch nicht erlebt.

Dear M.,

you don’t really expect me to answer CCNA class exercises, do you?

Greetings,

Krischan

On Wed, Jun 08, 2005 at 12:44:55PM -0700, M. wrote:

> Dear Jodies,
>
> I hope i got your name right. Anyways My name is
> M. I live in Asia Im 22 and im interesting in
> networking, but i am facing some problem which i cant
> answer my client with as i am still a beginner,so im
> here to seek your help please.
(more…)

Wenn man so ein Tool wie ipcalc ins Web stellt kriegt man ab und zu e-Mails zu dem Thema. Ganz selten kommen da interessante Ideen, was man noch verbessern könnte, aber meistens eher seltsames Zeug. Ich habe bislang noch (fast) jede dieser Mails beantwortet. An diesem Spass lasse ich das Web jetzt gnadenlos teilhaben.

On Thu, Mar 03, 2005 at 08:16:43AM -0800, K. wrote:

> Hello,
> Got your email from the web, IPCALC. Could you please tell
> me where I can download ipcalc to my desktop? It would help
> me very much.

Go again to the website an click on “Download.”

Krischan