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North American Network Operators Group

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Re: Router modifications to deal with smurf

  • From: Karl Denninger
  • Date: Sun Apr 26 20:42:56 1998

Lucent/Livingston has pointedly ignored just this RFE request for over a year.

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On Sat, Apr 25, 1998 at 05:29:02PM -0400, Rusty Zickefoose wrote:
> -----BEGIN PGP SIGNED MESSAGE-----
> 
> Fun with my mailor, let me try this again.
> 
>         So, if someone, or possibly a group of someones, were to make the
> following request to the various router vendors, would they be met with
> approval by most of the readers? 
> 
>         We requests that your routers be configurable, at the interface
> level, to prevent the forwarding of an ICMP echo-request packet through an
> interface that has a broadcast or wire address that matches the
> destination address of that packet.  We also request that the default
> configurations of your routers be modified to prevent said forwarding.
> 
>         We request that your routers be configurable, both globally and
> and the interface level, with the interface configuration overiding the
> global configuration, to prevent the forwarding of an IP packet with a
> source network address different from the network address of the interface
> on which it was received.  We also request that the default configurations
> of your routers be modified to prevent, globally, said forwarding. 
> 
> 
> - -- 
> Rusty Zickefoose  |  The most exciting phrase to hear in science,
> rusty@mci.net     |  the one that heralds new discoveries, is not
>                   |  "Eureka!", but "That's funny ..."
>                   |  -- Isaac Asimov
> 
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> 




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