North American Network Operators Group

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Re: source filtering

  • From: Dan Hollis
  • Date: Tue Jan 12 15:50:39 1999

On Tue, 12 Jan 1999, Craig A. Huegen wrote:
> With that said, you can use a line like the following to filter UDP
> echo smurfs at the network border; it won't affect other UDP traffic.
> access-list 101 permit udp any eq 7 any

The last UDP smurf we got was udp port 23. Strange but true.