TELECOM Digest OnLine - Sorted: Re: Can someone PINGing Really Screw Your Network

Re: Can someone PINGing Really Screw Your Network

Gene S. Berkowitz (first.last@comcast.net)
Fri, 31 Dec 2004 00:31:31 -0500

In article <telecom23.624.5@telecom-digest.org>,
BertieBigBollox@gmail.com says:

> Read somewhere that if someone continually pings your network, the
> server will eventually fall over.

> Seems a bit hard to believe. Surely one computer pinging would make
> very little impact even on a DSL connection ... Would be a bit
> unfortunate if this were the case and someone got hold of your static
> IP :-)

> Also, what about UDP floods? Are these different? Surely firewalls etc
> would stop this sort of thing from happening?

Ping can be set to send up to 65,500 bytes per packet. Usually the
"ping of death" is sent from many sources at once. Eventually the
server spends so much time replying to the pings, it can't get any
real work done.

A firewall will reject what it's told to reject. That doesn't stop
the packets from arriving over your connection, consuming your
bandwidth.

--Gene

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