I am trying to block public ip addresses/ranges of specific organizations in my firewall.
To accomplish the purpose, I need to find out the actual list of netblocks/IP addresses they own.
For facebook, I've used the following command and it worked as expected.
whois -h whois.radb.net -- '-i origin AS32934' | awk '/^route:/ {print $2;}' \
| sort | uniq
Would you advise me how to write a chain of commands to find public ip addresses/routes using as basis the whois command?
