README.md



    1 ## Description
    2 
    3 Netexpand will list every ip address in a given range, including broadcast and
    4 network addresses.
    5 
    6 An example usage for this program might be to use it to calculate every rule in
    7 a firewall that uses slash notation for subnets (for an audit perhaps).
    8 
    9 
   10 ## Example
   11 
   12 A simple example of calculating every ip address in the 127.0.0.1/16 range.
   13 
   14     $ netexpand 127.0.0.1/16
   15     127.0.0.1
   16     127.0.0.2
   17     127.0.0.3
   18     127.0.0.4
   19     127.0.0.5
   20     127.0.0.6
   21     127.0.0.7
   22     ...
   23 
   24 
   25 Another slightly more complex example of using a bash for loop to feed ipv4
   26 networks to netexpand for creating a complete list of all ips with rules in a
   27 firewall.
   28 
   29     for i in $(cat fwnets.txt); do
   30       netexpand ${i}
   31     done