I want to get all IP address ranges/blocks from as number. I can search throw google but need to write them manually. I want to get them all at once? Is this possible to get only ip address ranges from websites at once?
2 Answers
You can use whois servers instead of bgp.he.net or any other websites like this.
whois -h whois.radb.net -- '-i origin AS01' | grep 'route:'
Just run this command on your Linux machine.
sh ip bgp regex _<number>$
this shows the advertised netbocks from AS known to the local machine (on a cisco, quagga or FRR router). Some looking glasses will let you make this search (some won't).
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