blocking unallocated subnets

Randy Bush randy at psg.com
Fri Dec 2 20:10:29 UTC 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 203.49.118.0/24 to any 53

randy




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