Re: arp request for every fragment on Windows platform

You could try having a script running in the background that continuously
deletes the arp cache ( ARP -d * ) just have the script loop continuously.
Other than this, there is nothing to my knowledge ( if you've already tried
the reg keys for the ARP cache )

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Dusty Harper
Microsoft Corporation
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"stra" <sanmnn@yahoo.com> wrote in message
news:kuqsfv86ps7i53ma34abvm8159ld2o9cna@4ax.com...
> Hi all,
>
> I am trying to generate a scenario where arp request is sent
> for each IP fragments (see the end of this message). I don't
> know if this can be done under windows (2k, xp, 2k3).
>
> 1. a program to alter the timestamps of the arp entries in
> arp cache table. Tthe entry is removed before the 2nd
> fragment is sent, thus arp request is generated again.
>
> 2. on the other hand, it's possible this can be done easily
> with certain switches or tweaks in Windows. (BTW, registry
> keys like "ArpCacheSize", "ArpCache...",... etc don't work
> for me, please let me know if they indeed work and how)
>
> This scenario is not restricted to LAN or Internet...
>
> command: ping -l 1800 destination_public
>
> result...
> host broadcast arp request gateway
> gateway host arp gateway reply
> host dest icmp echo (ping) request
> host dest IP (fragmented IP)
> dest host icmp echo (ping reply
> dest host IP (fragmented IP)
>
> What I want to achieve is this...
> host broadcast arp request gateway
> gateway host arp gateway reply
> host dest icmp echo (ping) request
> host broadcast arp request gateway
> gateway host arp gateway reply
> host dest IP (fragmented IP)
> dest host icmp echo (ping reply
> dest host IP (fragmented IP)
>
>
> stra
>

Thanks for the reply!

I did an experiment with batch file, which delete the arp
entry too fast that none of the fragment was undeliverible.
As you suggested, I will try vbscript and sleep function.

Do you mean the registry keys do work?!

Thanks again,

stra

On Mon, 30 Jun 2003 09:38:58 -0700, "Dusty Harper {MS}"
<DHarper@Online.Microsoft.com> wrote:
>You could try having a script running in the background that continuously
>deletes the arp cache ( ARP -d * ) just have the script loop continuously.
>Other than this, there is nothing to my knowledge ( if you've already tried
>the reg keys for the ARP cache )
>
>--