Block traffic from AS12876 (scaleway)

iptables-block-as12876.sh

#!/bin/bash

set -e

if [ "$EUID" -ne 0 ]; then
  echo "run this script as root!"
  exit 1
fi

# ranges collected from https://ipinfo.io/AS12876
as12876_v4=(
  "151.115.0.0/18"
  "163.172.0.0/16"
  "163.172.208.0/20"
  "195.154.0.0/16"
  "212.129.0.0/18"
  "212.47.224.0/19"
  "212.83.128.0/19"
  "212.83.160.0/19"
  "51.15.0.0/16"
  "51.15.0.0/17"
  "51.158.0.0/15"
  "51.158.128.0/17"
  "62.210.0.0/16"
  "62.4.0.0/19"
)

as12876_v6=(
  "2001:bc8:1400::/38"
  "2001:bc8:1800::/38"
  "2001:bc8:1c00::/38"
  "2001:bc8::/32"
)

echo "Blocking AS12876 IPv4 ranges..."
for ip in "${as12876_v4[@]}"; do
  iptables -I INPUT -s "$ip" -j DROP
done

echo "Blocking AS12876 IPv6 ranges..."
for ip in "${as12876_v6[@]}"; do
  ip6tables -I INPUT -s "$ip" -j DROP
done

echo "Done! Printing results..."
iptables -S INPUT
ip6tables -S INPUT