Given a list of IPs and subnets, this program calculates the least number of lines required to write the ACL
Some notes:
- It currently only works for the last octect of the IPv4 address space
- When entering in networks, enter the ip address followed by the subnet
- The program assumes that the router has an implicit DENY ALL at the end of every list
- This program is not maintained
- The effeciency of the program is questionable due to the nature of needing to write down every host along with a subnet. At that rate, it would probably be faster to just type "deny host x.x.x.x" into an ACL and be on with your life
Examples:
Enter a network to calculate the access list or press 'Enter' to exit: 192.168.0.2 255.255.255.0
Enter a network to calculate the access list or press 'Enter' to exit: 192.168.0.4 255.255.255.0
Enter a network to calculate the access list or press 'Enter' to exit: 192.168.0.16 255.255.255.0
Enter a network to calculate the access list or press 'Enter' to exit: 192.168.0.42 255.255.255.0
Enter a network to calculate the access list or press 'Enter' to exit: 192.168.0.94 255.255.255.0
Enter a network to calculate the access list or press 'Enter' to exit: 192.168.0.124 255.255.255.0
Enter a network to calculate the access list or press 'Enter' to exit: 192.168.0.206 255.255.255.0
Enter a network to calculate the access list or press 'Enter' to exit: 192.168.0.46 255.255.255.0
Enter a network to calculate the access list or press 'Enter' to exit: 192.168.0.86 255.255.255.0
Enter a network to calculate the access list or press 'Enter' to exit:
permit 192.168.0.42 0.0.0.4
permit 192.168.0.94 0.0.0.8
permit 192.168.0.2 0.0.0.0
permit 192.168.0.4 0.0.0.0
permit 192.168.0.16 0.0.0.0
permit 192.168.0.124 0.0.0.0
permit 192.168.0.206 0.0.0.0
Finished in 1.72 seconds.
Enter a network to calculate the access list or press 'Enter' to exit: 192.168.0.6 255.255.255.0
Enter a network to calculate the access list or press 'Enter' to exit: 192.168.0.9 255.255.255.0
Enter a network to calculate the access list or press 'Enter' to exit: 192.168.0.7 255.255.255.0
Enter a network to calculate the access list or press 'Enter' to exit: 192.168.0.16 255.255.255.0
Enter a network to calculate the access list or press 'Enter' to exit: 192.168.0.5 255.255.255.0
Enter a network to calculate the access list or press 'Enter' to exit: 192.168.0.2 255.255.255.0
Enter a network to calculate the access list or press 'Enter' to exit: 192.168.0.12 255.255.255.0
Enter a network to calculate the access list or press 'Enter' to exit: 192.168.0.14 255.255.255.0
Enter a network to calculate the access list or press 'Enter' to exit: 192.168.0.0 255.255.255.0
Enter a network to calculate the access list or press 'Enter' to exit:
deny 192.168.0.4 0.0.0.0
permit 192.168.0.6 0.0.0.3
deny 192.168.0.18 0.0.0.0
permit 192.168.0.16 0.0.0.18
permit 192.168.0.12 0.0.0.2
permit 192.168.0.9 0.0.0.0
Finished in 1.79 seconds.
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