North American Network Operators Group

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Re: blocking unallocated subnets

  • From: Randy Bush
  • Date: Fri Dec 02 15:12:10 2005

> Another option is to automate the updates and leave the hard work
> to us!

the op was discussing port-specific filtering for dns only.  could
you explain how i can automake my /etc/ipfw.rules leaving the hard
work to you?  e.g.

    add deny udp from to any 53