Re: Help Needed

[Matt Taylor <mtaylor () clippercitynetworks com>]

Packet Fragmentation is the key:

http://www.insecure.org/sploits/ping-o-death.html


On Tue, 2004-03-09 at 12:40, harry wrote:
> John Kingston wrote:
> > From Windows 2000:
> >
> > Usage: ping [-t] [-a] [-n count] [-l size] [-f] [-i TTL] [-v TOS]
> >             [-r count] [-s count] [[-j host-list] | [-k host-list]]
> >             [-w timeout] destination-list
> >
> > Options:
> >     -t             Ping the specified host until stopped.
> >                    To see statistics and continue - type Control-Break;
> >                    To stop - type Control-C.
> >     -a             Resolve addresses to hostnames.
> >     -n count       Number of echo requests to send.
> >     -l size        Send buffer size.
> >     -f             Set Don't Fragment flag in packet.
> >     -i TTL         Time To Live.
> >     -v TOS         Type Of Service.
> >     -r count       Record route for count hops.
> >     -s count       Timestamp for count hops.
> >     -j host-list   Loose source route along host-list.
> >     -k host-list   Strict source route along host-list.
> >     -w timeout     Timeout in milliseconds to wait for each reply.
> >
> > So:
> > ping -l 65000 IPADDRESS will ping that IPADDRESS with 65000 bytes of data.
>
> not always... there mostly are limitations in clients that limit icmp 
> packets to 16 bits (65535)... but there are other implementations of 
> ping which allow bigger packets, suitable for a ping of death...
>
> (please, i'm new here... correct me if i'm wrong or do something wrong)
>
> greetings
--

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