North American Network Operators Group

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Re: SMURF amplifier block list

  • From: Michael Shields
  • Date: Tue Apr 14 06:51:25 1998

In article <[email protected]>,
"Forrest W. Christian" <[email protected]> wrote:
> On another note, could someone please mention again which IOS has the cool
> "drop all packets from an interface which we don't have a matching route
> pointing the other direction" feature?

11.1CC.  I think the command is `ip verify unicast reverse-path' in
the interface config.

It works on the CEF table, so you *must* enable CEF, or it will just
drop all packets.
Shields, CrossLink.