472 B
472 B
| title |
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| Blocking and depreferring BGP routes from specific countries |
Hurricane Electric keeps a somewhat up-to-date list of ASNs registered to each country in the world. This is obtainable via:
export COUNTRY=CA # This is the country code to look up
curl -A "asd" https://bgp.he.net/country/$COUNTRY | grep -o -E "AS([0-9]+)" | sort | uniq
# You should get a list of ASNs piped to stdout
Two types of filters are handy. Blackholing, and depreferring.