ipfw | including external IP txt file

[Tim Daneliuk]

On 4/4/20 1:39 PM, Jos Chrispijn wrote:
> Can you tell me how I can best include text file T with blocked ip addresses to my ipfw rules set?
> this file contains ip addresses to be blocked in this format:
> 
> .0.1.0/24
> 1.0.2.0/23
> 1.0.8.0/21
> 1.0.32.0/19
> 1.1.0.0/24
> 1.1.2.0/23
> 1.1.4.0/22
> 1.1.8.0/24
> 1.1.9.0/24
> 1.1.10.0/23
> etc
> 
> I am already using a table(22) but don't want to alter that one but include the T file in let's say table(10) or something like that?
> 
> Thanks for your comments,
> Jos
  ###
  # Block Naughty IP Addresses/Spaces
  ###

  # Use ipfw tables for efficiency

  ipfw table 10 flush
  for addr in `cat ${NAUGHTYFILE}`
  do
    ipfw -q table 10 add ${addr}
  done

  ipfw -q add deny all from table\(10\) to any via <interface name>


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Tim Daneliuk     tundra at tundraware.com
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